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THE AURORA BOREALIS IN THE ARCTIC REGIONS.

This book, a reprint of a successful English publication, has been so enlarged as to be to all intents and purposes new. It has been carefully revised by a Reverend gentleman, who for some time filled the chair of Physics and Chemistry in one of our colleges.

Recent inventions and improvements are described in a simple, popular style, so as to be easily understood by all, and short notices are given of prominent inventors and scientists. The paragraphs relating to doctrinal matters conform in every respect to the teachings of the Church.

A feature which will commend the book to every teacher is the definitions of difficult words and terms, following the paragraphs in which such words occur.

Technical language is avoided as much as possible, so as to enable young pupils to become familiarly acquainted with the various phenomena of nature, the leading characteristics and general history of the objects of the animal, vegetable, and mineral kingdoms, and the fundamental truths of the arts and sciences.

The illustrations are of a superior order, and a very complete Index, which will be appreciated by every teacher, supplements the book. In a word, no pains have been spared to enhance the value of the work, and render it an important auxiliary in the dissemination of useful and entertaining knowledge.

The publishers beg to acknowledge their obligations to the Sisters of Mercy, Loretto, Pa., to whose kindness they are indebted for many valuable suggestions.

In the hope that the book may be found suited to the accomplishment of its aim, it is respectfully submitted to schools and instructors of youth, who are the best judges of its merits.

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What is Dew?

Moisture collected from the atmosphere by the action of cold. During the day, the powerful heat of the sun causes to arise from the earth and water a moist vapor, which, after the sun sinks below the horizon, is condensed by the cold, and falls in the form of dew. Dews are more copious in the Spring and Autumn than at any other season; in warm countries than in cold ones: because of the sudden changes of temperature. Egypt abounds in dews all the summer; for the air being too hot to condense the vapors in the day-time, they never gather into clouds and form rain.

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What are its uses?

It cools and refreshes the vegetable creation, and prevents it from being destroyed by the heat of the sun. All hot countries where there is little or no rain are therefore blessed with this provision by the all-bountiful Creator, to render them luxuriant and inhabitable; and the dews which fall are so copious, that the earth is as deeply soaked with them during the night as if a heavy rain had fallen. For this reason also it is, that we so often read in the Bible of the "dew of Heaven" being promised to the Israelites as a signal favor.

From what does the vapor originate?

Vapor is water, combined with a still greater quantity of caloric,—that is, an imponderable and subtile form of matter, which causes the sensation of heat; and which, driving asunder the particles of the water, renders it aëriform.

What is Water?

The fluid which covers more than three-fifths of the surface of our globe, and which is necessary for the life and health of the animal and vegetable creation; for without water there would be neither rain nor dew, and everything would perish. It is likewise a necessary beverage for man and the inferior animals.

In how many states do we find Water?

In four: 1st, solid, as in ice, snow, hail, &c.; 2d, fluid, as in its common form; 3d, aëriform, as in steam; and 4th, in a state of union with other matter. Its most simple state is that of ice, which is water deprived of a certain portion of its caloric: crystallization then takes place, and the water becomes solid and is called ice.

From what cause is the Water deprived of its caloric?

From the coldness of the atmosphere: underneath the poles of our globe it is mostly solid; there it is similar to the hardest rocks, and may be cut with a chisel, like stone or marble. This great solidity is occasioned by the low temperature of the surrounding air; and in very cold countries ice may be ground so fine as to be blown away by the wind, and will still be ice.

Is ice the only instance of Water existing in a state of solidity?

No; it is found in a solid state in many minerals, as in marble, &c., and is then called water of Crystallization. It is essential, in many cases, to their solidity and transparency.

Does Nature decompose Water in any of her operations?

Yes: every living vegetable has the power of decomposing water, by a secret process peculiar to itself. Fish, too, and all cold-blooded amphibious animals are gifted with the same power.

Of what use is this power to vegetables?

The water which they decompose affords them nourishment for the support of their vital juices, and enables them, by combining the fluid gases which compose it with those of the air and the soil, to form their different products; while the superfluous gas is abundantly given out by their leaves, to refresh the spent air, and render it [16]wholesome for the animals that breathe it.

What is Rain?

The condensed aqueous vapors raised in the atmosphere by the sun and wind, converted into clouds, which fall in rain, snow, hail, or mist: their falling is occasioned by their own weight in a collision produced by contrary currents of wind, from the clouds passing into a colder part of the air, or by electricity. If the vapors are more copious, and rise a little higher, they form a mist or fog, which is visible to the eye; higher still they produce rain. Hence we may account for the changes of the weather: why a cold summer is always a wet one—a warm, a dry one.

What seasons are more liable to rain than others?

The Spring and Autumn are generally the most rainy seasons, the vapors rise more plentifully in Spring; and in the Autumn, as the sun recedes from us and the cold increases, the vapors, which lingered above us during the summer heats, fall more easily.

What is Snow?

Rain congealed by cold in the atmosphere, which causes it to fall to the earth in white flakes. Snow fertilizes the ground by defending the roots of plants from the intenser cold of the air and the piercing winds.

What is Hail?

Drops of rain frozen in their passage through cold air. [17]Hail assumes various figures according to the degrees of heat or cold through which it passes, being sometimes round, flat, &c.

What is the Atmosphere?

The mass of aëriform fluid which encompasses the earth on all sides: it extends about fifty miles above its surface. Air is the elastic fluid of which it is composed.

What are the uses of air?

It is necessary to the well-being of man, since without it neither he nor any animal or vegetable could exist. If it were not for atmospheric air, we should be unable to converse with each other; we should know nothing of sound or smell; or of the pleasures which arise from the variegated prospects which surround us: it is to the presence of air and carbonic acid that water owes its agreeable taste. Boiling deprives it of the greater part of these, and renders it insipid.

What is Wind?

Air in motion with any degree of velocity.

What is Lightning?

The effect of electricity in the clouds. A flash of lightning is simply a stream of the electric fluid passing from the clouds to the earth, from the earth to the clouds, or from one cloud to another. Lightning usually strikes the highest and most pointed objects, as high hills, trees, spires, masts of ships, &c.

What is Thunder?

The report which accompanies the electrical union of the clouds: or the echoes of the report between them and the earth. Thunder is caused by a sudden discharge of electrical matter [18]collected in the air, by which vibrations are produced, which give rise to the sound.

What is Electricity?

One of those agents passing through the earth and all substances, without giving any outward signs of its presence, when at rest; yet when active, often producing violent and destructive effects. It is supposed to be a highly elastic fluid, capable of moving through matter. Clouds owe their form and existence, probably, to it; and it passes through all substances, but more easily through metals, water, the human body, &c., which are called conductors, than through air, glass, and silk, which are called non-conductors. When bodies are not surrounded with non-conductors, the electricity escapes quickly into the earth.

To what part of bodies is Electricity confined?

To their surfaces, as the outside may be electric, and the inside in a state of neutrality. The heat produced by an electric shock is very powerful, but is only accompanied by light when the fluid is obstructed in its passage. The production and condensation of vapor is a great source of the atmospheric electricity.

In what other sense is the term Electricity employed?

This term is also employed to designate that important branch of knowledge which relates to the properties shown by certain bodies when rubbed against, or otherwise brought in contact with, each other, to attract substances, and emit sparks of fire.

CUTTING AND GATHERING ICE, ON THE HUDSON RIVER, NEW YORK.

Whence is the word derived?

From electron, the Greek word for amber, a yellow transparent substance, remarkable for its electrical power when rubbed: amber is of a resinous nature, and is collected from the sea-shore, or dug from the earth, in many parts of the[19] world. It is employed in the manufacture of beads and other toys, on account of its transparency; is of some use in medicine, and in the making of varnishes.

Name a few substances possessing this remarkable property.

Silks of all kinds; the hair and fur of animals, paper, sulphur, and some other minerals; most of the precious stones; the paste of which false gems are made; and many other substances used by us in the common affairs of life, are susceptible of electrical excitement; among domestic animals the cat furnishes a remarkable instance. When dry and warm, the back of almost any full-grown cat (the darker its color the better) can be excited by rubbing it with the hand in the direction of the hair, a process which is accompanied with a slight snapping noise, and in the dark by flashes of pale blue light. When a piece of glass is rubbed with silk, or a stick of red sealing-wax with woollen cloth, each substance acquires the property of attracting and repelling feathers, straws, threads of cotton, and other light substances; the substances just mentioned as highly electric are, however, merely specimens. All objects, without exception, most probably are capable of being electrically excited; but some require more complicated contrivances to produce it than others.

Is there not a machine by which we are enabled to obtain large supplies of electric power at pleasure?

Yes; the electrical machine. It is made of different forms and sizes: for common purposes those of the simplest form are the best. A common form of the machine consists of a circular plate of glass, which can be turned about a horizontal axis by means of a suitable handle. This plate turns [20]between two supports, and near its upper and lower edges are two pairs of cushions, usually made of leather, stuffed with horse-hair and coated with a mixture of zinc, tin, and mercury, called an amalgam. These cushions are the rubbers for producing friction, and are connected with the earth by means of a metal chain or rod. Two large hollow cylinders of brass with globular ends, each supported by two glass pillars, constitute the reservoir for receiving the electricity. They are called the prime conductors, and are supplied with U-shaped rods of metal, furnished with points along their sides, called combs, for the purpose of receiving the electricity from the glass plate, the arms of the U being held upon either side. The other ends of the conductors are connected by a rod from the middle of which projects another rod terminating in a knob, for delivering the spark.

On turning the plate, a faint snapping sound is heard, and when the room is darkened, a spark is seen to be thrown out from the knob projecting from the prime conductors.

Many curious and interesting experiments may be performed by means of the machine, illustrating the general properties of electricity. For instance: a person standing on an insulated bench, that is, a bench with glass legs, or having the legs resting on glass, and having one hand on the conductor, can send sparks, with the other hand, to everything and everybody about. This illustrates communication of electricity by contact. A wooden head, covered with long hairs, when placed on the conductor, illustrates electrical repulsion, by the hairs standing on end.

If the hand is held to the knob, sparks will pass from it in rapid succession, causing in the hand a sensation of pain. This is called an electric shock, and is caused by the electric fluid occasioning a sudden motion by the contraction of the muscles through which it passes. The force of the shock is in proportion to the power of the [21]machine.

What are the Muscles?

Bundles of thin fleshy fibres, or threads, fastened to the bones of animals, the contraction and expansion of which move the bones or perform the organic functions of life.

What is Twilight?

The light from the first dawning of day to the rising of the sun; and again between its setting and the last remains of day. Without twilight, the sun's light would appear at its rising, and disappear at its setting, instantaneously; and we should experience a sudden transition from the brightest sunshine to the profoundest obscurity. The duration of twilight is different in different climates; and in the same places it varies at different periods of the year.

How is it produced?

By the sun's refraction—that is, the variation of the rays of light from their direct course, occasioned by the difference of density in the atmosphere.

What is the poetical name for the morning Twilight?

Aurora, the goddess of the morning, and harbinger of the rising sun: whom poets and artists represent as drawn by white horses in a rose-colored chariot, unfolding with her rosy fingers the portals of the East, pouring reviving dew upon the earth, and re-animating plants and flowers.

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What remarkable phenomenon is afforded to the inhabitants of the polar regions?

The Aurora Borealis, or Northern Lights, a luminous appearance in the northern parts of the heavens, seen mostly during winter, or in frosty weather, and clear evenings; it assumes a variety of forms and hues, especially in the polar regions, where it appears in its perfection, and proves a great solace to the inhabitants amidst the gloom of their long winter's night, which lasts from one to six months, while the summer's day which succeeds it lasts in like manner for the same period of time.

Of what nature is the Aurora Borealis?

It is decidedly an electrical phenomenon which takes place in the higher regions of the atmosphere. It is somehow connected with the magnetic poles of the earth; and generally appears in form of a luminous arch, from east to west, but never from north to south.

In what country is it seen constantly from October to Christmas?

In Siberia, where it is remarkably bright. On the western coast of Hudson's Bay, the sun no sooner disappears, than the Aurora Borealis diffuses a thousand different lights and colors with such dazzling [23]beauty, that even the full moon cannot eclipse it.

What is Corn?

Corn signifies a race of plants which produce grain in an ear or head, fit for bread, the food of man; or the grain or seed of the plant, separated from the ear.

What is generally meant by Corn?

In this country, maize, or Indian corn, is generally meant; but, in a more comprehensive sense, the term is applied to several other kinds of grain, such as wheat, rye, barley, oats, &c.

Where was Corn first used?

It is uncertain. The Athenians pretend that it was amongst them it was first used; the Cretans, Sicilians, and Egyptians also lay claim to the same. From the accounts in the Bible, we find that its culture engaged a large share of the attention of the ancient Hebrews.

Who were the Athenians?

Inhabitants of Athens, the capital city of Greece.

Who were the Cretans?

The inhabitants of Crete, an island of the Archipelago.

Who were the Sicilians?

Inhabitants of Sicily, the largest island of the Mediterranean Sea, now a part of Italy, and separated from the mainland by the Strait of Messina.

Where do the Egyptians dwell?

In Egypt, a country of Africa. It is extremely fertile, producing great quantities of corn. In ancient times it was called the dry nurse of Rome and Italy, from its furnishing with corn a considerable part of the Roman Empire; and we are informed, [24]both from sacred and profane history, that it was anciently the most fertile in corn of all countries of the world. The corn of Syria has always been very superior, and by many classed above that of Egypt.

For what is Barley generally used?

It is very extensively used for making malt, from which are prepared beer, ale, porter, &c.; in Scotland it is a common ingredient in broths, for which reason its consumption is very considerable, barley broth being a dish very frequent there.

What is Pearl Barley?

Barley freed from the husk by a mill.

What are Oats?

A valuable grain, serving as food for horses. Oats are also eaten by the inhabitants of many countries, after being ground into meal and made into oat cakes. Oatmeal also forms a wholesome drink for invalids, by steeping it in boiling water.

What are the uses of Rye?

In this and some other countries it is much used for bread, either alone or mixed with wheat; in England principally as food for cattle, especially for sheep and lambs, when other food is scarce in winter. Rye yields a strong spirit when distilled.

Of what country is the Potato a native?

Potatoes grew wild in Peru, a country of South America; whence they were transplanted to other parts of the American continent, and afterwards to Europe. The honor of introducing this useful vegetable into England is divided between Sir Francis Drake, in 1580, and Sir Walter Raleigh, in 1586, some ascribing it to the former, and others to the latter. It is certain they were obtained from Virginia in the time of Raleigh; they were cultivated only in the gardens of the nobility, and were reckoned a great delicacy. They now constitute a principal article of food [25]in most of the countries of Europe and America; in Ireland, they have long furnished nearly four-fifths of the entire food of the people.

What part of the plant is eaten?

The root, which, when roasted or boiled, affords a wholesome and agreeable meal.

What is Tea?

The leaves of an evergreen shrub, a native of China and Japan, in which countries alone it is extensively cultivated for use. The tea-plant was at one time introduced into South Carolina, where its culture appears to have been attended with but little success. It may yet become a staple production of some portions of the United States.

How is it prepared for use?

By carefully gathering the leaves, one by one, while they are yet small, young, and juicy. They are then spread on large flat iron pans, and placed over small furnaces, when they are constantly shifted by the hand till they become too hot to be borne.

What is next done?

They are then removed with a kind of shovel resembling a fan, and poured on mats, whence they are taken in small quantities, and rolled in the palm of the hand always in one direction, until they cool and retain the curl.

How often is this operation repeated?

Two or three times, the furnace each time being made less hot. The tea is then placed in the store-houses, or packed in chests, and sent to most of the countries in Europe and America.

Describe the appearance of the Tea-tree.

The Tea-tree when arrived at its full growth, which it does in about seven years, is about a man's height; the green leaves are narrow, and jagged all round; the flower resembles that of [26]the wild rose, but is smaller. The shrub loves to grow in valleys, at the foot of mountains, and on the banks of rivers where it enjoys a southern exposure to the sun; though it endures considerable variation of heat and cold, as it flourishes in the northern clime of Pekin, where the winter is often severe; and also about Canton, where the heat is sometimes very great. The best tea, however, grows in a temperate climate, the country about Nankin producing better tea than either Pekin or Canton, between which two places it is situated.

What produces the difference between Green and Bohea, or Black?

There are varieties of the plant, and the difference of the tea arises from the mode of preparation.

What nation first introduced it into Europe?

The Dutch in 1610; it was introduced into England in 1650

What is Coffee?

The berry of the coffee-tree, a native of Arabia. The coffee-tree is an evergreen, and makes a beautiful appearance at all times of the year, but especially when in flower, and when the berries are red, which is usually during the winter. It is also cultivated in Persia, the East Indies, Liberia on the coast of Africa, the West Indies, Brazil and other parts of South America, as well as in most tropical climates.

Who was the original discoverer of Coffee, for the drink of man?

It is not exactly known: the earliest written accounts of the use of Coffee are by Arabian writers in the 15th century; it appears that in the city of Aden it became, in the latter half of that century, a very popular drink, first with lawyers, studious persons, and those whose occupation required wakefulness at night, and soon after, with all classes. Its use gradually extended to other cities, and to those on [27]the eastern shores of the Mediterranean. Towards the end of the seventeenth century, it was carried to Batavia where it was soon extensively planted, and at last young trees were sent to the botanical garden at Amsterdam.

Who introduced it into France and England?

Thevenot, the traveller, brought it into France, and a Greek servant named Pasqua (taken to England by Mr. Daniel Edwards, a Turkey merchant, in 1652, to make his coffee,) first set up the profession of coffee-man, and introduced the drink among the English.

How is it prepared?

The berries are roasted in a revolving metallic cylinder, till they are of a deep brown color, and then ground to powder, and boiled.

What is Chocolate?

A kind of cake or paste, made of the kernel of the cacao-nut.

Describe the Cacao-nut Tree.

It resembles the cherry tree, and grows to the height of fifteen or sixteen feet. The cacao-nut tree bears leaves, flowers, and fruit, all the year through.

Where does it grow?

In tropical regions, where it is largely cultivated.

Of what form is the fruit?

It is somewhat like a cucumber, about three inches round, and of a yellowish red color. It contains from ten to forty seeds, each covered with a little rind, of a violet color; when this is stripped off, the kernel, of which they make the chocolate, is visible.

How do they make it into a drink?

By boiling it with water or milk. There are various newly-invented ways of preparing chocolate, so that it may be made in a few minutes, by only pouring boiling water upon it.

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What is Calico?

A kind of printed cotton cloth, of different colors.

From what place did it take its name?

From Calicut, a city on the coast of Malabar, where it was first made; much is now manufactured in the United States, England, and many other countries.

What is Cotton?

A downy or woolly substance, enclosed in the pod, or seed-vessel, of the cotton-plant. The commercial classification of cotton is determined—1, by cleanliness or freedom from sand, dry leaf, and other impurities; 2, by absence of color; both subject also to character of staple, length, and strength and fineness of fibre. These together determine relative value. There are two general classifications, long-stapled and short-stapled. Of the former the best is the sea island cotton of the United States. The short staple cotton, grows in the middle and upper country; the long staple is cultivated in the lower country near the sea, and on the islands near the coasts.

How is it cultivated?

The seeds are sown in ridges made with the plough or hoe; when the plants are mature, the pods open, and the cotton is picked from them.

Where did Cotton anciently grow, and for what was it used?

In Egypt, where it was used by the priests and sacrificers, for a very singular kind of garment worn by them alone.

In what manufacture is it now used?

It is woven into muslins, dimities, cloths, calicoes, &c.; and [29]is also joined with silks and flax, in the composition of other stuffs, and in working with the needle.

How is the Cotton separated from the seed?

By machines called cotton gins, of which there are two kinds; the roller-gin, and the saw-gin. In the former, the cotton, just as gathered from the plant, is drawn between two rollers, placed so closely together as to permit the passage of the cotton, but not of the seeds, which are consequently left behind. In the saw-gin, the cotton is placed in a receiver, one side of which consists of a grating of parallel wires, about an eighth of an inch apart; circular saws, revolving on a common axis between these wires, entangle in their teeth the cotton, and draw it from the seeds, which are too large to pass between the wires.

How is it made into Calico, &c.?

The cotton having been separated from the seed, is spun by a machine for the purpose. It is next woven, then dressed, and printed.

What is Cloth?

The word, in its general sense, includes all kinds of stuffs woven in the loom, whether the threads be of wool, cotton, hemp, or flax.

To what is it more particularly applied?

To a web or tissue of woollen threads.

What is Wool?

The covering or hair of sheep. To prepare it for the weaver, it is first shorn, washed, and dried, then carded or combed by machinery into fibres or threads: formerly this was always performed by the hand, by means of an instrument, called a comb, with several rows of pointed teeth; this, though not much used now, is still occasionally employed, except in large factories. This combing is repeated two or three times, till it is sufficiently smooth and even for spinning. Spinning or converting wool, [30]or cotton, silk, &c. into thread, was anciently performed by the distaff and spindle: these we find mentioned in sacred history, and they have been used in all ages, and in all countries yet discovered. The natives of India, and of some other parts of the world, still employ this simple invention.

What was the next improvement?

The invention of the hand-wheel. In 1767, a machine called the spinning-jenny was invented by a weaver named Hargreaves; but the greatest improvement in the art of spinning was effected by Mr. Arkwright, in 1768: these two inventions were combined, and again improved upon in 1776; so that by the new plan, the material can be converted into thread in a considerably shorter space of time than in the ancient mode; leaving to man merely to feed the machine, and join the threads when they break. The sheep, whose wool forms the material for nearly all woollen clothing, came originally from Africa.

Does weaving differ according to the material used?

The principle of weaving is the same in every kind of fabric, and consists in forming any kind of thread into a flat web, or cloth, by interlacing one thread with another; the various appearances of the manufacture arise as much from the modes in which the threads are interwoven, as from the difference of material.

Is not the employment of Wool in the manufacture of Clothing of great antiquity?

In the earliest records we possess of the arts of mankind, wool is mentioned as forming a chief article in the manufacture of clothing; it is spoken of in the Bible, as a common material for cloth, as early as the time of Moses. The ancient Greeks and Romans are well known to have possessed this art. At the beginning of the thirteenth century, the manufacture was established in many parts of Europe, particularly in Spain, from which country it extended itself to France and Italy. There is no doubt that it was introduced into England by its conquer[31]ors the Romans, a manufactory being established at Winchester, sufficiently large to supply the Roman army.

What circumstance contributed to the progress of this manufacture among the English?

In 1330, the English, being desirous of improving their woollen manufacture, invited over the Flemings, by the offer of various privileges, to establish manufactories there. The skill of these people soon effected a great improvement in the English fabrics, so that there no longer remained any occasion for the exportation of English wool into Flanders, to be manufactured into fine cloth; and a law was passed by the government to forbid it. Both the cotton and woollen manufactures have, of late years, arisen to great importance in the United States.

What country affords the best Wool?

The wool of Germany is most esteemed at the present day: that of Spain was formerly the most valuable, but the Spanish breed of sheep, having been introduced into Germany, succeeded better there than in Spain, and increased so rapidly, that the Spanish wool trade has greatly diminished. Australia is one of the principal wool-growing countries in the world, for the breed of sheep sent out to that country and Tasmania has succeeded remarkably well.

What part of the world is meant by Australia?

A British Island in the South Pacific Ocean, comprising the Colonies of Queensland, New South Wales, Victoria, South Australia, and Western Australia. It is the principal of the group of large islands, in the Oriental Archipelago. Tasmania is another of the same group, separated from New South Wales by a channel called Bass's Strait, and also belongs to Great Britain.

What is meant by an Archipelago?

A part of a sea studded with numerous islands; but the term [32]is more particularly applied to that lying between Europe and Asia, which contains the Greek Islands. The word is a corruption from the Greek, signifying the Ægean Sea.

Is the Wool of the sheep all of one quality?

No; it varies according to the species of sheep, the soil on which they are fed, and the part of the animal from which it is taken: the chief distinction is between the long and the short wool; the long wool is employed in the manufacture of carpets, crapes, blankets, &c.; and the finer and shorter sorts for hosiery, broadcloths &c.

Where were Carpets originally made?

Carpets are of oriental origin, and are made of different sorts of stuffs; they are woven in a variety of ways. Persian and Turkey carpets are most esteemed; they are woven in a piece, in looms of a very simple construction. Formerly the manufacture of these carpets was confined to Persia and Turkey; but they are now successfully made, both in Europe and the United States, &c. Great Britain is the principal seat of the carpet manufacture of the world. Brussels, Wilton, and Kidderminster carpets derive their names from the places where they were invented.

Is not the art of weaving very ancient?

It appears to have been known from a period as early as the time of Abraham and Jacob; its inventor is not known, but it is possible that men took a lesson from the ingenious spider, which weaves its web after the same manner. The ancient Egyptians appear to have brought it to great perfection, and were even acquainted with the art of interweaving colors after the manner of the Scottish plaid.

What is Baize?

A coarse, open, woollen stuff, with a long nap. It is chiefly made in the United States, England, France, &c.

What is Linen?

There are various kinds of linen, made from cotton, flax, and hemp; but the term is chiefly applied to that woven with the [33]two last mentioned. Linen means cloth of flax; hence its derivation from the Latin word linum, flax.

What is Flax?

An annual plant, the fibres of which are beaten into threads, spun, and afterwards woven into linen; it is extensively cultivated in the United States, Russia, and some other countries of Europe. Hemp is a plant of a similar nature, equally used with flax, in the manufacture of linens. Russian hemp is cultivated to a larger extent than that of any other country, and is considered the best that is grown.

How long has the use of Hemp and Flax been known?

Those plants are said to be natives of Persia, and introduced from some parts of the East into Europe, over which it is now widely distributed: it existed both in a wild and cultivated state, in some parts of Russia, as early as five centuries before Christ These products form a considerable article of exportation, besides the quantity used in Russia itself; a considerable part is wrought into linens, diapers, canvas, and other manufactures; and even the seeds are exported, both in their natural state and as oil. In various parts of Russia, hemp-seed oil and flax-seed (or linseed) oil are prepared in very large quantities.

What is Diaper?

A sort of linen cloth, woven in flowers, and other figures; it is said to have received its name from d'Iper, now Ypres, a town of Belgium, situated on a river of the same name, where it was first made.

What is Holland?

A fine, close, even, linen cloth, used for sheets, &c. It obtained its name from being principally made in Holland.

What is Canvas?

A hempen cloth, so loosely woven as to leave interstices between the threads, in little squares. It is used for working in patterns upon it with wools, &c.; by painters for a ground work on which they draw their pictures; for tents, sails, and [34]many other purposes. There are several sorts, varying in the fineness of their texture.

What is Damask?

A sort of silken stuff, having some parts raised on its surface to represent flowers or figures. It took its name from Damascus, in Syria, whence it was first brought.

Is there not another sort of Damask?

Yes, made from linen; and so called because its large flowers resemble those of damask roses. It was first made in Flanders, and is used for table linen, &c.

What is Flannel?

A slight, loose, woollen stuff, used for warm clothing; it was originally made in Wales, where it still continues to be manufactured in great perfection.

Of what form is the tree which bears those large nuts, called Cocoa nuts?

It is tall and straight, without branches, and generally about thirty or forty feet high; at the top are twelve leaves, ten feet long, and half a foot broad; above the leaves, grows a large excrescence in the form of a cabbage, excellent to eat, but taking it off kills the tree. The cocoa is a species of Palm.

Is not the Indian liquor called Toddy, produced from the Cocoa Tree?

Yes, between the leaves and the top arise several shoots about the thickness of a man's arm, which, when cut, distil a white,[35]sweet, and agreeable liquor; while this liquor exudes, the tree yields no fruit; but when the shoots are allowed to grow, it puts out a large cluster or branch, on which the cocoa nuts hang, to the number of ten or twelve.

THE CATHEDRAL OF MILAN, ITALY.

How often does this tree produce nuts?

Three times a year, the nuts being about the size of a man's head, and of an oval form.

Of what countries is it a native?

Of Asia, the Indies, Africa, Arabia, the Islands of the Southern Pacific, and the hottest parts of America.

What are the uses of this Tree?

The leaves of the tree are made into baskets; they are also used for thatching houses: the fibrous bark of the nut, and the trunk of the tree, are made into cordage, sails, and cloth; the shell, into drinking bowls and cups; the kernel affords a wholesome food, and the milk contained in the shell, a cooling liquor.

From what country was the Cherry Tree first brought?

From Cerasus, a city of Pontus, in Asia, on the southern borders of the Black Sea; from which place this tree was brought to Rome, in the year of that city 680, by Lucullus; it was conveyed, a hundred and twenty-eight years after, into Great Britain, a.d. 55.

What is the meaning of A.D.?

A short way of writing Anno Domini, Latin words for in the year of our Lord.

Who was Lucullus?

A renowned Roman general.

Is the wood of the Cherry Tree useful?

It is used in cabinet-making, for boxes, and other articles.

What is Bark?

The exterior part of trees, which serves them as a skin or covering.

[36]

Does it not undergo some change during the year?

Each year the bark of a tree divides, and distributes itself two contrary ways, the outer part gives towards the skin, till it becomes skin itself, and at length falls off; the inner part is added to the wood. The bark is to the body of a tree, what the skin of our body is to the flesh.

Of what use is Bark?

Bark is useful for many things: of the bark of willows and linden trees, ropes are sometimes made. The Siamese make their cordage of the cocoa tree bark, as do most of the Asiatic and African nations; in the East Indies, they make the bark of a certain tree into a kind of cloth; some are used in medicines, as the Peruvian bark for Quinine; others in dyeing, as that of the alder; others in spicery, as cinnamon, &c.; the bark of oak, in tanning; that of a kind of birch is used by the Indians for making canoes.

What are Canoes?

Boats used by savages; they are made chiefly of the trunks of trees dug hollow; and sometimes of pieces of bark fastened together.

How do the savages guide them?

With paddles, or oars; they seldom carry sails, and the loading is laid in the bottom.

Are not the savages very dexterous in the management of them?

Yes, extremely so; they strike the paddles with such regularity, that the canoes seem to fly along the surface of the water; at the same time balancing the vessels with their bodies, to prevent their overturning.

Do they leave their canoes in the water on their return from a voyage?

No, they draw them ashore, hang them up by the two ends, and leave them to dry; they are generally so light as to be easily carried from [37]place to place.

Were not books once made of Bark?

Yes, the ancients wrote their books on the barks of many trees, as on those of the ash and the lime tree, &c.

Which part did they use?

Not the exterior or outer bark, but the inner and finer, which is of so durable a texture, that there are manuscripts written on it which are still extant, though more than a thousand years old.

Is it not also used in Manure?

Yes, especially that of the oak; but the best oak bark is used in tanning.

What is Cork?

The thick, spongy, external bark of the Cork Tree, a species of oak. There are two varieties of this tree, the broad-leaved and the narrow: it is an evergreen, and grows to the height of thirty feet. The Cork Tree attains to a very great age.

Where is the Tree found?

In Spain, Italy, France, and many other countries. The true cork is the produce of the broad-leaved tree.

What are its uses?

Cork is employed in various ways, but especially for stopping vessels containing liquids, and, on account of its buoyancy in water, in the construction of life boats. It is also used in the manufacture of life preservers and cork jackets. The greatest quantities are brought from Catalonia, in Spain. The uses of Cork were well known to the ancients.

To what particular use did the Egyptians put it?

They made coffins of it, lined with a resinous composition, which preserved the bodies of the dead uncorrupted.

What is Cochineal?

A drug used by the dyers, for dyeing crimsons and scarlets; and for making carmine, a brilliant red used in painting, and several of the arts.

Is it a plant?

No, it is an insect. The form of the Cochineal is oval; it [38]is about the size of a small pea, and has six legs armed with claws, and a trunk by which it sucks its nourishment.

What is its habitation?

It breeds in a fruit resembling a pear; the plant which bears it is about five or six feet high; at the top of the fruit grows a red flower, which when full blown, falls upon it; the fruit then appears full of little red insects, having very small wings. These are the Cochineals.

How are they caught?

By spreading a cloth under the plant, and shaking it with poles, till the insects quit it and fly about, which they cannot do many minutes, but soon tumble down dead into the cloth; where they are left till quite dry.

Does the insect change its color when it is dead?

When the insect flies, it is red; when it is fallen, black; and when first dried, it is greyish; it afterwards changes to a purplish grey, powdered over with a kind of white dust.

From what countries is the Cochineal brought?

From the West Indies, Jamaica, Mexico, and other parts of America.

What are Cloves?

The dried flower-buds of the Clove Tree, anciently a native of the Moluccas; but afterwards transplanted by the Dutch (who traded in them,) to other islands, particularly that of Ternate. It is now found in most of the East Indian Islands.

Describe the Clove Tree.

It is a large handsome tree of the myrtle kind; its leaves resemble those of the laurel. Though the Clove Tree is cultivated to a great extent, yet, so easily does the fruit on falling take root, that it thus multiplies itself, in many instances, without the trouble of culture. The clove when it first begins to appear is white, then green, and at last hard and red; when dried, it turns yellow, and then dark brown.

[39]

What are its qualities?

The Clove is the hottest, and most acrid of aromatic substances; one of our most wholesome spices, and of great use in medicine; it also yields an abundance of oil, which is much used by perfumers, and in medicine.

What is Cinnamon?

An agreeable, aromatic spice, the bark of a tree of the laurel kind; the Cinnamon tree grows in the Southern parts of India; but most abundantly in the island of Ceylon, where it is extensively cultivated; its flowers are white, resembling those of the lilac in form, and are very fragrant; they are borne in large clusters. The tree sends up numerous shoots the third or fourth year after it has been planted; these shoots are planted out, when nearly an inch in thickness.

How is the bark procured?

By stripping it off from these shoots, after they have been cut down; the trees planted for the purpose of obtaining cinnamon, throw out a great number of branches, apparently from the same root, and are not allowed to rise higher than ten feet; but in its native uncultivated state, the cinnamon tree usually rises to the height of twenty or thirty feet.

How is the Cinnamon Tree cultivated?

By seed, sown during the rains; from shoots cut from large trees; and by transplanting old stumps. The cinnamon tree, in its wild state, is said to be propagated by means of a kind of pigeons, that feed on its fruit; in carrying which to their nests, the seeds fall out, and, dropping in various places, take root, spring up, and become trees.

What else is obtained from this tree?

The bark, besides being used as a spice, yields an oil highly [40]esteemed, both as a medicine and as a perfume; the fruit by boiling also produces an oil, used by the natives for burning in lamps; as soon as it hardens, it becomes a solid substance like wax, and is formed into candles. Camphor is extracted from the root. Cassia is cinnamon of an inferior kind.

What is Bombazine?

A stuff composed of silk and wool woven together in a loom. It was first made at Milan, and thence sent abroad; great quantities are now made in England and other countries.

Where is Milan situated?

In Italy, and is noted for its cathedral.

For what is Bombazine used?

For dresses. Black bombazine is worn entirely for mourning. The original bombazine has, however, become much less used than formerly, on account of the numerous newly-invented fabrics of finer or coarser qualities, composed of the same materials mixed in various degrees, as Mousselines de laine, Challis, &c.

What is Crape?

A light, transparent stuff, resembling gauze, made of raw silk very loosely woven, or of wool; by raw silk is meant, silk in the state in which it is taken from the silk worm.

Where was Crape first made?

At Bologna, a city of Italy.

What city of France was long celebrated for its manufacture?

Lyons, the second city of France, where there are large silk [41]manufactories. Great quantities are also made in England, principally in the city of Norwich, which has long been distinguished for the beauty of its crapes.

What is Camlet?

A stuff made sometimes of wool, sometimes of silk and hair, especially that of goats. The oriental camlet is made of the pure hair of a sort of goat, a native of Angora, a city of Natolia, in Turkey. The European camlets are made of a mixture of woollen thread and hair.

What countries are most noted for them?

England, France, Holland, and Flanders; the city of Brussels, in Belgium, exceeds them all in the beauty and quality of its camlets; those of England are the next.

What is Cambric?

A species of linen made of flax; it is very fine and white.

From whence did it take its name?

From Cambray, a large and celebrated city of French Flanders, where it was first made; it is now made at other places in France; and also in England, Scotland, Ireland, the United States, &c.

What is Lace?

A work composed of many threads of fine linen or silk, interwoven one with another according to some particular pattern. Belgium, France, and England are the principal countries in which this manufacture is carried on; vast quantities of the finest laces were formerly made in Flanders.

From what is Silk produced?

From the silk-worm, an insect not more remarkable for the precious matter it furnishes, than for the many forms it assumes before and after it envelopes itself in the beautiful ball, the silken threads of which form the elegant texture which is so much worn.

[42]

What are the habits of this insect, and on what does it feed?

After bursting from the egg, it becomes a large worm or caterpillar of a yellowish white color, (which is its first state;) this caterpillar feeds on the leaves of the mulberry tree, till, arriving at maturity, it winds itself up in a silken bag or case, called a cocoon, about the size and shape of a pigeon's egg, and becomes a chrysalis; in which state it lies without signs of life; in about ten days it eats its way out of its case, a perfect butterfly, which lays a number of eggs and then dies. In the warmth of the summer weather, these eggs are hatched, and become worms, as their parents did at first.

How much silk is each ball said to contain?

Each ball consists of a very fine, soft, bright, delicate thread, which being wound off, extends in length six miles.

What is meant by Chrysalis?

The second state into which the insect passes before it comes to be a butterfly. The maggot or worm having ceased to eat, fixes itself in some place till its skin separates, and discovers a horny, oblong body, which is the chrysalis.

Where was Silk first made?

The culture and manufacture of silk was originally confined to China. The Greeks, under Alexander the Great, brought home, among other Eastern luxuries, wrought silks from Persia, about 323, b.c. It was not long unknown to the Romans, although it was so rare, that it was even sold weight for weight with gold. The Emperor Aurelian, who died in 275, b.c. refused the Empress, his wife, a suit of silk which she solicited with much earnestness, merely on account of its dearness. Heliogabalus, the Emperor, who died half a century before Aurelian, was the first who wore a holosericum or garment all of silk.

[43]

Who introduced the Silk Worm itself into Europe?

Two monks, engaged as missionaries in China, obtained a quantity of silk worms' eggs, which they concealed in a hollow cane, and conveyed in safety to Constantinople in 552; the eggs were hatched in the proper season by the warmth of manure, and the worms fed with the leaves of the wild mulberry tree. These worms in due time spun their silk, and propagated under the care of the monks, who also instructed the Romans in the whole process of manufacturing their production. From the insects thus produced, proceeded all the silk worms which have since been reared in Europe, and the western parts of Asia. The mulberry tree was then eagerly planted, and on this, their natural food, they were successfully reared in Greece; and the manufacture was established at Thebes, Athens, and Corinth, in particular. The Venetians, soon after this time commencing a trade with the Greeks, supplied all the Western parts of Europe with silks for many centuries.

Where were the cities of Thebes and Athens situated?

Thebes was an ancient city of Beotia, in Greece, founded by Cadmus, a Phenician, though of Egyptian parentage. Sailing from the coast of Phenicia, he arrived in Beotia, and built the city, calling it Thebes, from the city of that name in Egypt. To this prince is ascribed the invention of sixteen letters of the Greek Alphabet. Athens was the capital of Attica, founded by Cecrops, an Egyptian. It was the seat of learning and the arts, and has produced some of the most celebrated warriors, statesmen, orators, poets, and sculptors in the world. Since the emancipation of Greece from the cruel bondage of its conquerors the Turks, who had oppressed it for three centuries, Athens has been chosen as its capital, and is still a considerable town adorned with splendid ruins of the beautiful buildings it once possessed. Thebes and Corinth, another celebrated city, are now only villages. [44]

Who were the Venetians?

Inhabitants of Venice, a city of Italy.

Did this manufacture continue to be confined to the Greeks and Venetians?

By no means. The rest of Italy, and Spain, by degrees learnt the art from some manufactories in Sicily; and about the reign of Francis the First, the French became masters of it. It, however, long remained a rarity; their King, Henry the Second, is supposed to have worn the first pair of knit silk stockings. The Fourth Henry encouraged the planting of mulberry trees; his successors also did the same, and the produce of silk in France is now very considerable.

When was the manufacture of silk introduced into England?

There was a company of silk women in England as early as the year 1455; but they probably were merely employed in needlework of silk and thread, for Italy supplied England with the broad manufacture during the chief part of the fifteenth century. The great advantage this new manufacture afforded, made King James the First very desirous for its introduction into England, particularly in 1608, when it was recommended, in very earnest terms, to plant mulberry trees for the rearing of silk worms; but unhappily without effect. However, towards the latter end of this reign, the broad silk manufacture was introduced, and with great success. The revocation of the Edict of Nantes contributed greatly to its promotion, by the number of French workmen who took refuge in England; to them the English are indebted for the art of manufacturing many elegant kinds of silks, satins, velvets, &c., which had formerly been imported from abroad up to the year 1718. The silk manu[45]facture has also been successfully introduced into some portions of the United States.

What was the Edict of Nantes?

A law made in favor of the Protestants, the repealing of which drove many of their most skilful workmen to take refuge in England. They were kindly received, and settled in Spitalfields, and many other parts of England as well as Ireland, where they carried on a flourishing and ingenious manufacture.

Were the attempts to rear Silk Worms in England successful?

No; after many trials, all of which failed, attention was directed to the establishments for procuring both raw and wrought silks, in the settlements in India belonging to Britain; this was attended with complete success, the climate being extremely favorable, and the price of labor cheap. Raw silk is imported in quantities from India, China, Italy, &c.

How is the Silk taken from the Worm?

The people who are employed in the care of these insects collect the golden balls from off the mulberry trees, (to the leaves of which the insects glue their silk) and put them into warm water, that the threads may unfasten and wind off more easily; having taken off the coarse woolly part which covers the balls, they take twelve or fourteen threads at a time, and wind them off into skeins. In order to prepare this beautiful material for the hand of the weaver to be wrought into silks, stuffs, brocades, satins, velvets, ribbons, &c., it is spun, reeled, milled, bleached, and dyed.

What is Velvet?

A rich kind of stuff, all silk, covered on the outside with a close, short, fine, soft shag; the wrong side being very strong and close. The principal number, and the best velvets, were made in France and Italy; others in Holland; they are now[46] brought to great perfection in England. An inferior kind is made by mixing cotton with the silk. Velvet has been known in Europe for some centuries, but its manufacture was long confined to some of the chief cities of Italy. From that country the French learned the art, and greatly improved it.

Whence is the word Velvet derived?

From the Italian word velluto, signifying velvet, which comes from vellus, hair or fleece.

What is Mohair?

The hair of a kind of goat, common about Angora, in Turkey. It is used in the manufacture of various kinds of stuffs, shawls, &c.

Is there not another animal much celebrated for the material it furnishes in the making of shawls?

Yes; the Thibet goat. The wool is sent to Cashmere, where it is spun and dyed. Cashmere is situated in the north-west extremity of India, and has long been celebrated for the beautiful and valuable shawls bearing its name which are manufactured there. The goats are beautiful creatures, with long, fine, wavy hair, reaching nearly to the ground, so as almost to conceal their legs. The material of which the shawls are made is a fine silky down, which grows under the long hair, next to the skin.

What are Currants?

A kind of small raisins or dried grapes.

Whence are they brought?

From several islands of the Archipelago, particularly Zante and Cephalonia; and from the Isthmus of Corinth, in Greece.

[47]

Do they grow on bushes like our Currants?

No, on vines like other grapes, except that the leaves are somewhat thicker, and the grapes much smaller: they have no pips, and are of a deep red, or rather black color.

When are they gathered, and how are they dried?

They are gathered in August, and laid on the ground in heaps till dry; they are then cleaned, and put into magazines, from which they are taken and packed in barrels for exportation.

What do you mean by Exportation?

The act of conveying goods for sale from one country to another.

What are Raisins?

Grapes prepared by drying them in the sun, or by the heat of an oven. Raisins of Damascus, so called from the capital city of Syria, near which they are cultivated, are very large, flat, and wrinkled on the surface; soft and juicy inside, and nearly an inch long. Raisins of the sun, or jar raisins, so called from being imported in jars, are all dried by the heat of the sun; they are of a reddish blue color, and are the produce of Spain, whence the finest and best raisins are brought. There are several other sorts, named either from the place in which they grow, or the kind of grape of which they are made, as those of Malaga, Valencia, &c.

In what manner are they dried?

The common way of drying grapes for raisins, is to tie two or three bunches of them together while yet on the vine, and dip them into a lye made of hot wood-ashes, mixed with a little olive oil. This makes them shrink and wrinkle: after this they are cut from the branches which supported them, but left on the vine for three or four days, separated on sticks, in an upright position, to dry at leisure. Different modes, however, are adopted, according to the quality of the grape. The commonest kinds are dried in hot ovens, but the best way is that in which [48]the grapes are cut when fully ripe, and dried by the heat of the sun, on a floor of hard earth or stone.

What are Figs?

A soft, luscious fruit, the produce of the fig-tree. The best figs are brought from Turkey, but they are also imported from Italy, Spain, and the southern part of France. The islands of the Archipelago yield an inferior sort in great abundance. In this country they are sometimes planted in a warm situation in gardens, but, being difficult to ripen, they do not arrive at perfection. The figs sent from abroad are dried by the heat of the sun, or in furnaces for the purpose.

What is Rice?

A useful and nutritious grain, cultivated in immense quantities in India, China, and most eastern countries; in the West Indies, Central America, and the United States; and in southern Europe. It forms the principal food of the people of eastern and southern Asia, and is more extensively consumed than any other species of grain, not even excepting wheat.

Does it not require a great deal of moisture?

Yes, it is usually planted in moist soils, and near rivers, where the ground can be overflowed after it is come up. The Chinese water their rice-fields by means of movable mills, placed as occasion requires, upon any part of the banks of a river; the water is raised in buckets to a proper height, and afterwards conveyed in channels to the destined places.

What is Sugar?

A sweet, agreeable substance, manufactured chiefly from the Sugar Cane,[1] a native of the East and West Indies, South America and the South Sea Islands; it is much cultivated in all tropical countries. The earliest authentic accounts of sugar, are [49]about the time of the Crusades,[2] when it appears to have been purchased from the Saracens, and imported into Europe.

How is it prepared?

The canes are crushed between large rollers in a mill, and the juice collected into a large vessel placed to receive it; it is then boiled, and placed in pans to cool, when it becomes imperfectly crystallized, in which state we use it. This is called raw or soft sugar: loaf sugar, or the hard white sugar, is the raw brown sugar, prepared by refining it till all foreign matter is removed.

Is the Sugar Cane the only vegetable that produces Sugar?

All vegetables contain more or less sugar, but the plant in which it most abounds is the sugar-cane. In the United States, a large quantity of sugar is prepared from the sap of the Sugar Maple Tree. The trees are tapped at the proper season by a cut being made in the bark, and the juice runs into a vessel placed to receive it; it is then prepared in the same manner as the juice of the sugar cane.

What is Sugar Candy?

Sugar purified and crystallized.

What is Barley Sugar?

Sugar boiled till it is brittle, and cast on a stone anointed with oil of sweet almonds, and then formed into twisted sticks.

What is Sago?

A substance prepared from the pith of the Sago Palm, which grows naturally in various parts of Africa and the Indies. The pith, which is even eatable in its natural state, is taken from the trunk of the tree, and thrown into a vessel placed over a horse-hair sieve; water is then thrown over the mass, and the finer parts of the pith pass through the sieve; the liquor thus obtained is left to settle. The clear liquor is then drawn off, [50]and what remains is formed into grains by being passed through metal dishes, with numerous small holes; it is next dried by the action of heat, and in this state it is exported. The Sago Palm also produces sugar.

What is Millet, and in what countries does it grow?

Millet is an esculent grain, originally brought from the Eastern countries. It is cultivated in many parts of Europe, but most extensively in Egypt, Syria, China, and Hindostan, whence we are furnished with it, it being rarely cultivated among us, except as a curiosity.

For what is Millet used?

It is in great request amongst the Germans for puddings; for which it is sometimes used amongst us. The Italians make loaves and cakes of it.

What is Ginger?

The root of a plant cultivated in the East and West Indies, and in America; it is a native of South-eastern Asia and the adjoining islands.

Describe its nature and use.

It is a warm aromatic, much used in medicine and cookery. The Indians eat the root when green as a salad, chopping it small with other herbs; they also make a candy of it with sugar. The ginger sold in the shops here is dried, which is done by placing the roots in the heat of the sun or in ovens, after being dug out of the ground. Quantities not only of the dried root, but also of the candied sugar, are imported.

What are Nutmegs?

A delicate aromatic fruit or spice, brought from the East Indies. The nutmeg tree greatly resembles our pear tree, and produces a kind of nut, which bears the same name as the tree.

GLASS BLOWING AT THE GLASS-WORKS, PITTSBURGH, PA.

What is the appearance of the Nutmeg?

Its form is round, and its smell agreeable. The nutmeg is [51] inclosed in four different covers; the first, a thick fleshy coat, (like our walnut,) which opens of itself when ripe; under this lies a thin reddish network, of an agreeable smell and aromatic taste, called mace; this wraps up the shell, which opens as the fruit grows. The shell is the third cover, which is hard, thin, and blackish; under this is a greenish film of no use; and in the last you find the nutmeg, which is the kernel of the fruit.

What are its uses?

The nutmeg is much used in our food, and is of excellent virtue as a medicine. It also yields an oil of great fragrance.

Is the Mace used as a spice?

Yes, it is separated from the shell of the nutmeg, and dried in the sun. It is brought over in flakes of a yellow color, smooth and net-like, as you see it in the shops. Its taste is warm, bitterish, and rather pungent; its smell, aromatic. It is used both in food and medicine, as the nutmeg, and also yields an oil.

What is Pimento or Allspice?

The dried unripe berry or fruit of a tree growing in great abundance in Jamaica, particularly on the northern side of that island, on hilly spots, near the coast; it is also a native of both Indies. The Pimento Tree is a West Indian species of Myrtle; it grows to the height of twenty or thirty feet; the leaves are all of a deep, shining green, and the blossom consists of numerous branches of small, white, aromatic flowers, which render its appearance very striking; there is scarcely in the vegetable world any tree more beautiful than a young Pimento about the month of July, when it is in full bloom.

When is the time to gather the spice?

About the month of September, not long after the blossoms are fallen, the berries are gathered by the hand; one laborer on the tree, employed in gathering the small branches, will give employment to three below (who are generally women and [52]children) in picking the berries. They are then spread out thinly, and exposed to the sun at its rising and setting for some days; when they begin to dry, they are frequently winnowed, and laid on cloths to preserve them better from rain and dew; by this management they become wrinkled, and change from green to a deep reddish brown color. Great quantities are annually imported.

What are its uses?

It forms a pleasant addition to flavor food; it also yields an agreeable essential oil, and is accounted the best and mildest of common spices.

Why is it called Allspice?

Because it has been supposed to combine the flavor of cloves, nutmegs, and cinnamon; the French call it round clove, from its round shape, and the taste being somewhat like that spice.

What is Pepper?

The product of a creeping shrub, growing in several parts of the East Indies, Asia, and America.

In what manner does Pepper grow, and what part of the shrub is used?

Pepper is the fruit of this shrub, and grows in bunches or clusters, at first green; as it ripens it becomes reddish, until having been exposed for some time to the heat of the sun, (or probably gathered before perfectly ripe,) it becomes black, as in the condition we have it. There are two sorts, the black and the white.

What is the White Pepper?

The white pepper is merely the black deprived of its outside skin. For this purpose the finest red berries are selected, and put in baskets to steep, either in running water, or in pits dug for the purpose, near the banks of rivers. Sometimes they are only buried in the ground. In any of these situations, they [53]swell and burst their skins, from which, when dry, they are carefully separated by rubbing between the hands, or fanning.

What is Cayenne Pepper?

The dried fruit of a plant called bird pepper, a native of both Indies. It is more pungent than the other sorts.

What is Glass?

A transparent, solid, brittle, factitious body, produced by fusing sand with an alkali. The essential ingredients of glass are silex and potash, or soda; a few other substances are sometimes added. Silex is found nearly pure in rock crystal, flint, and other varieties of quartz; for the manufacture of the better kinds of glass in this country, it is generally obtained from sand, especially the white sand of New Jersey.

What is Potash?

The saline matter obtained from the ashes of wood, by causing water to pass through them; the water imbibes the salt, which is then obtained from it by evaporation. When purified by calcination, it is termed pearlash. In countries where there are vast forests, as in America and Russia, it is manufactured on a very large scale.

What can you say of the origin of Glass?

The period of its invention is quite unknown. Pliny relates that some merchants, driven by a storm to the coast of Phenicia, near the river Belus, made a large fire on the sand to dress [54]some food, using as fuel some of the plant Kali, which grew there in great abundance; an imperfect glass was thus formed by the melting of the sand and ashes together. This production was picked up by a Syrian merchant, who, attracted by its great beauty, examined the cause of its origin, and, after many attempts, succeeded in its manufacture.

Who was Pliny?

A celebrated Roman naturalist and historian.

At what place was Glass first made?

Some authors mention Sidon in Syria, which became famous for glass and glass-houses; but others maintain that the first glass-houses noticed in history were built at Tyre; which, they add, was the only place where glass was made for many ages. It is certain that the art was known to the Egyptians.

What is Phenicia?

A sub-division of Syria in Asia.

What is an author?

A person who writes a book.

What is signified by a glass-house?

A building erected for the making and working of glass.

What countries had glass windows first?

Italy, then France and England; they began to be common about the year 1180.

In what year, and where, was the making of glass bottles begun?

In 1557, in London. The first glass plates for mirrors and coach-windows were made at Lambeth, in 1673.

What is a Mirror?

A body which exhibits the images of objects presented to it by reflection. The word mirror is more peculiarly used to signify a smooth surface of glass, tinned and quicksilvered at the back,[3] which reflects the images of objects placed before it.

[55]

Are they a modern invention?

The use of mirrors is very ancient; mention is made of brazen mirrors or looking-glasses in Exodus, the 38th chapter and 8th verse. Some modern commentators will not admit the mirrors themselves to have been of brass, but of glass set or framed in brass; but the most learned among the Jewish rabbins say that in those times the mirrors made use of by the Hebrew women in dressing their heads were of metal, and that the devout women mentioned in this passage made presents to Moses of all their mirrors to make the brazen laver for the Tabernacle. It might likewise be proved that the ancient Greeks made use of brazen mirrors, from many passages in the ancient poets.

What nation invented the large looking-glass plates now in use?

The French.

What city of Italy excelled all Europe for many years in the making of fine glass?

Venice. The manufacture of fine glass was first introduced into England by Venetian artists in 1078.

Of what is Earthenware composed?

Of clay, and those earths which are capable of being kneaded into a paste easily receiving any form, and acquiring solidity by exposure to fire: sand, chalk, and flint are likewise mixed with clay.

In what manner is it formed into such a variety of shapes?

The flint or sand, and soft clay, are mixed together in various proportions for the different kinds of ware; this paste is afterwards beaten till it becomes fit for being formed at the wheel into plates, dishes, basins, &c. These are then put into a furnace and baked; after which they are glazed.

What nation so greatly excelled in the manufacture of a beautiful species of Earthenware?[56]

The Chinese,—who, as far as can be ascertained, were its inventors. Porcelain is a fine sort of earthenware, chiefly made in China, whence it was called China or China-ware; it is also brought from many parts of the East, especially from Japan, Siam, Surat, and Persia. The art of making porcelain was one of those in which Europe had been excelled by oriental nations; but for many years past earthenwares have been made in different parts of Europe, so like the oriental, that they have acquired the name of porcelain. The first European porcelains were made in Saxony and France, and afterwards in England, Germany, and Italy, all of which differed from those of Japan and China, but each possessing its peculiar character. They are now brought to great perfection in Europe, particularly in England, France and Prussia.

Before the invention of Earthenware, what supplied its place to the early inhabitants of the world?

The more civilized the inhabitants of any country became, the more they would perceive the convenience of possessing vessels of various descriptions for holding or preparing their food; some of the objects which first presented themselves would be the larger kinds of shells; and, in hot climates, the hard coverings of the cocoa-nut or gourd. In some cases the skins of beasts were used, as they still are in the East, where they are sewed together, and formed into a kind of bottle to hold milk, wine, &c.; but the people of colder climates would not be able to avail themselves of these natural productions, and would be obliged to make use of other substances.

What, then, would they employ?

Clay, which in many countries is found in great abundance, from its adhesive property, and its retaining its form when dry, and becoming insoluble in water after having been baked in the fire, would naturally attract the attention of an improving people: from this it arises that the early remains of culinary and other vessels which have been discovered have been formed of this material. Among the remains of ancient Egypt, numerous vessels have been found formed of common clay baked in the fire; and, though of rude workmanship, extremely elegant in form. [57]

Of what are Needles made?

Of steel; and though exceedingly cheap, they go through a great number of operations before they are brought to perfection. It was in the reign of Queen Elizabeth that the English learnt the art of making needles.

Of what are Pins made?

Of brass wire, blanched with tin. They are manufactured in England, France, the United States, and other countries. Though there is scarcely any commodity cheaper than pins, there is no other which passes through the hands of a greater number of workmen; more than twenty persons being successively employed in the manufacture of each, from the drawing of the brass wire to the sticking of the pin in the paper. Pins are supposed to have been made in England about 1543, or even earlier. Before this art was invented, the ladies made use of wooden skewers.

Of what is Paper made?

Of linen and cotton rags beaten to a pulp in water; also from straw, wood, and many plants.

What materials were used for writing, before the invention of Paper?

Various were the materials on which mankind in different ages and countries contrived to write: stones, bricks, the leaves of herbs and trees, and their rinds or barks; tablets of wood, wax, and ivory; plates of lead, silk, linen rolls, &c. At length the Egyptian paper made of the papyrus, was invented; then parchment; and lastly, paper manufactured of cotton or linen [58]rags. There are few sorts of plants which have not at some time been used for paper and books. In Ceylon, for instance, the leaves of the talipot; in India, the leaves of the palm (with which they commonly covered their houses,) were used for books. In the East Indies, the leaves of the plantain tree, dried in the sun, were used for the same purpose. In China, paper is made of the inner bark of the mulberry, the bamboo, the elm, the cotton, and other trees.

What is Papyrus?

A large rush, chiefly growing in Egypt, on the banks of the Nile. The ancient Egyptians made sails, ropes, mats, blankets, and canvas, of the stalks and fibres of the papyrus. Their priests also wore shoes made of it; and even sugar was extracted from this plant. Moses, the deliverer raised by God to rescue the Israelites from the bondage of Egypt, was exposed to the Nile in a basket of papyrus. The plant is now, however, exceedingly scarce.

Where was the first Paper Mill erected in England?

At Dartford, by a German named Spilman, in 1588. The only sort made, however, was the coarse brown; and it was not till 1690, when the French protestant refugees settled in England, that their own paper-makers began to make white writing and printing paper. The manufacture has been brought to great perfection, both for beauty and substance, in England and the United States.

THE DOME OF PISA, ITALY; WITH THE FAMOUS LEANING TOWER, IN THE DISTANCE.

Is it known to whom we are indebted for the invention of Linen Paper?

Not exactly. It has long been disputed among the learned[59] when, and by whom, it was invented; some authors say it was discovered by the Germans, others by the Italians; others ascribe it to some refugee Greeks at Basil, who took the idea from the making of cotton paper in their own country; some, that the Arabs first introduced it into Europe. Perhaps the Chinese have the best title to the invention, inasmuch as they have for many ages made paper, and in some provinces of the same materials as are now used by us in its manufacture.

In what place was the art of Printing first practised?

Who were the inventors of Printing, in what city, and in what year it was begun, has long been a subject of great dispute. Mentz, Harlem, and Strasburg, cities of Germany, all lay claim to the invention, but Mentz seems to have the best title to it.

What was the first Book that was printed from metal types?

A copy of the Holy Scriptures, which made its appearance between the years 1450 and 1452.

Who introduced Printing into England?

William Caxton, a merchant of London, who had acquired a knowledge of it in his travels abroad.

Of what does Printing consist?

Of the art of taking impressions with ink, from movable characters and figures made of metal, &c., upon paper or parchment.

What is Parchment?

Sheep or goat's skin, prepared after a peculiar manner, which renders it proper for several uses, especially for writing on, and for the covering of books. The ancients seem to have used the skins of animals as a writing material, from a remote period.

From what is the word Parchment taken?

From Pergamena, the ancient name of this manufacture, which it is said to have taken from the country of Pergamus; and to Eumenes, king of that country, its invention is usually ascribed, though in reality, that prince appears to have been the improver, rather than the inventor of parchment; since [60]some accounts refer its invention to a still earlier period of time. Herodotus, an ancient Greek historian, who lived about 450 years before Christ, relates that the ancient Ionians made use of sheep and goat-skins in writing, many ages before the time of Eumenes; the Persians of old, too, wrote all their records on skins, and probably such skins were prepared and dressed for that purpose, after a manner not unlike our parchments, though not so artificially.

Who were the Ionians?

The inhabitants of Ionia, an ancient country in the western part of Asia Minor.

In what manner is Parchment now prepared?

The sheep-skins are smeared over with lime[4] on the fleshy side, folded, laid in heaps, and thus left for some days; they are next stretched very tight on wooden frames, after having been washed, drained, and half dried. The flesh is then carefully taken off with iron instruments constructed on purpose, and the skin cleansed from the remaining hairs that adhere to it. After having gone through several operations till it is perfectly clean and smooth, it is fit for writing upon.

What are the uses of Parchment?

Parchment is of great use for writings which are to be preserved, on account of its great durability; the writing on it remaining perfect for a great number of years. It is also used for the binding of books, and various other purposes.

What is Vellum?

A finer sort of parchment than the former, but prepared in the same manner, except that it is not passed through the lime-pit. It is made of the skins of very young calves: there is also a still finer sort made of the skins of sucking lambs, or kids; this is called virgin parchment, and is very thin, fine, and white, and is used for fancy-work, such as ladies' fans, &c.

[61]

What are Capers?

The full-grown flower-buds of the Caper Tree, a small shrub, generally found growing out of the fissures of rocks, or among rubbish, on old walls and ruins, giving them a gay appearance with its large white flowers. It is a native of Italy: it is also common in the south of France, where it is much cultivated.

How are they prepared, and for what are they used?

They are gathered, and dried in the shade; then infused in vinegar, to which salt is added; after which they are put in barrels, to be used as a pickle, chiefly in sauces.

What are frequently substituted for Capers?

The buds of broom pickled in the same manner, or the berries of the nasturtium, an American annual plant, with pungent fruit.

What are Almonds?

The nut of the Almond Tree, a species of the peach, growing in most of the southern parts of Europe; there are two kinds, the bitter and the sweet.

What are their qualities and use?

The sweet almonds are of a soft, grateful taste, and much used by the confectioner in numerous preparations of sweet-meats, cookery, &c. Both sorts yield an oil, and are useful in medicine.

Of what country is the Orange a native?

It is a native of China, India, and most tropical countries; but has long been produced in great perfection in the warmer parts of Europe and America. Oranges are imported in immense quantities every year, from the Azores, Spain, Portugal, [62]Italy, &c. They are brought over in chests and boxes, packed separately in paper to preserve them. The oranges in common use with us are the bitter or Seville, the China or sweet orange, and those from Florida.

Where are the Azores situated?

In the Atlantic Ocean, about 800 miles west of Portugal. These islands are very productive in wine and fruits.

Where is Seville?

In Spain; it is an ancient and considerable city, the capital of the province of Andalusia. The flowers of the Seville orange are highly odoriferous, and justly esteemed one of the finest perfumes. Its fruit is larger than the China orange, and rather bitter; the yellow rind or peel is warm and aromatic. The juice of oranges is a grateful and wholesome acid.

Who first introduced the China Orange into Europe?

The Portuguese. It is said that the very tree from which all the European orange trees of this sort were produced, was still preserved some years back, at the house of the Count St. Laurent, in Lisbon. In India, those most esteemed, and which are made presents of as rarities, are no larger than a billiard ball. The Maltese oranges are said by some to be the finest in the world.

Who are the Maltese?

The inhabitants of Malta, an island of the Mediterranean, situated between Africa and Sicily.

Whence are Lemons brought?

The Lemon is a native of Eastern Asia, whence it was brought to Greece, and afterwards to Italy; from Italy it was transplanted to Spain, Portugal, and the South of France, whence lemons are imported in great plenty.

What is the Citron?

The fruit of the Citron Tree, resembling the lemon, but [63]somewhat larger, and having a finer pulp. The citron was also brought originally from the East of Asia, but has since been produced in the warm parts of Europe, like the orange and lemon; Genoa especially is the greatest nursery for them. Its rind is principally brought to this country in a candied state, and is applied by confectioners to various purposes.

Where is Genoa?

A city of Northern Italy, on the Mediterranean, between the rivers Bisagno and Polcevera.

What is the Lime?

The Lime is by some thought to be a species of lemon, by others not; it is a smaller fruit, and in the West Indies is greatly preferred to the lemon. It is cultivated in the South of Europe, the West Indies, and the warm parts of America. The agreeable scent called Bergamot is prepared from the rind of a small species of lime.

What are Olives?

The fruit of the Olive Tree, an evergreen, now common in the woods of France, Spain, and Italy; but in the wild state producing a small fruit of no value; when cultivated, however, (which it is extensively, both for the fruit and the quantity of oil which it yields,) it forms one of the richest productions of Southern Europe. The olive came originally from Asia. Its use is very ancient; it is frequently spoken of in the Bible, both as in a wild and cultivated state. The promised land of the Israelites was "a land of oil, olive, and honey." From the time that the dove returned to Noah in the Ark with an "olive leaf plucked off," in all ages and countries, wherever this tree is known, down to the present day, has an olive-branch been the favorite emblem of peace.

What nation holds the olive in great repute?

This tree was a great favorite with the ancient Greeks, and scarcely an ancient custom existed in which the olive was not in some way associated: at their marriages and festivals, all [64]parts of their dwellings, especially the doors, were ornamented with them, and the same custom prevails at the present day, both in public and private rejoicings. It was also scarcely less a favorite with the Romans, although it was not held in the same sacred light as amongst the Greeks. The olive-branch has likewise been universally considered the emblem of plenty, and as such, is found on the coins of those countries of which it is not a native. Two centuries after the foundation of Rome, both Italy and Africa were strangers to this useful plant; it afterwards became naturalized in those countries, and at length arrived in Spain, France, &c. Olive trees sometimes attain a great age.

How are the Olives eaten?

The olives while on the tree are intolerably bitter, without any of that peculiar taste which gains them admittance at the richest tables; to fit them for which they are pickled. Ripe olives are eaten in the Eastern countries, especially amongst the Greeks, as an article of food, particularly in Lent. The oil, which they yield in great quantities, is very highly esteemed; being that chiefly used for salads, &c., in medicine, and in various manufactures.

How is the Oil drawn from the Olive?

By presses or mills made for the purpose. The sweetest and best olive oil comes from the South of France, from Naples, Florence, and Lucca; quantities are also brought from Spain and the Ionian Islands.

Where is Naples?

In the South of Italy.

Where are Florence and Lucca situated?

In Italy. Florence is a very ancient, large, and celebrated city, the capital of Italy; Lucca, formerly a republic, belongs now to the kingdom of Italy.

[65]

You said that the olive is an Evergreen: to what plant or shrub is the term particularly applied?

To any shrub or tree whose leaves continue fresh and green all the year round, winter and summer, as the laurel, pine, cedar, holly, &c., which do not shed their leaves in autumn as other trees.

Is oil a production confined to the Olive alone?

By no means. Oil is a fatty, inflammable matter, drawn from many vegetable and animal bodies. The oils in common use are of three different kinds. The first are mere oily or fatty bodies, extracted either by pressure, or by decoction: of the first kind are those of almonds, nuts, olives, &c.; and of the other, those of different berries, &c., which are procured by boiling the substance in water, which causes the oil to collect on the top.

What are the second and third kinds of Oils?

The second are those drawn from vegetables by common distillation in the alembic, with the aid of water; these contain the oily and volatile part of the plant, and are called essential oils. The third sort are those produced by distillation, but of a different kind in an open vessel, and without the help of water. They are likewise divided into vegetable oils, animal oils, and mineral oils; which last are those drawn from amber, and a few other substances partaking both of the vegetable and mineral natures, as Petroleum, commonly known as kerosene or coal oil.

Whence is the word Oil derived?

[66]

From the Latin oleum, formed from olea, olive-tree, the fruit of which abounds in oil.

What immense fish is it that furnishes us with a quantity of animal oil?

The Whale, the largest and noblest inhabitant of the waters. It is protected from the cold by a case or coating of blubber, that is, a thick oily fat from which the oil is made; numbers of them are caught for the sake of that. Ambergris, highly prized in perfumery, is a product of the sperm whale.

In what seas are they found?

Chiefly in the Northern Seas: extensive whale fisheries are carried on by the Americans, English, Dutch, &c., and numbers of vessels are sent out for the purpose of taking the fish: they usually sail in the latter end of March, and begin fishing about May. The whale fishery continues generally from that time till the latter end of June or July. There are also other fishes and animals which afford us oils of different kinds, which are used for various purposes in medicine and the arts.

Is the oil called castor, which is so much used in medicine, the product of an animal or a plant?

Castor oil is expressed from a West Indian shrub, called Palma Christi; and especially from the ripe seeds, which are full of this oil. It is prepared by collecting these ripe seeds, and freeing them from the husks; then bruising and beating them into a paste; they are next boiled in water, when the oil rising to the surface is skimmed off as it continues to appear. The Castor-oil plant is found growing abundantly in Sumatra, particularly near the sea-shore.

Where is Sumatra situated?

In the Oriental Archipelago, off the south eastern part of the continent of Asia.

In what other countries is this plant found?

In some parts of Africa, Syria, and Egypt. It was anciently cultivated in the two last-mentioned countries in large quantities,[67]the seeds being used for the oil they yielded, which was burnt in lamps.

BEAVERS BUILDING THEIR HUTS.

Is not the Palma Christi much affected by soil and situation?

Greatly so. In some places it attains the stature of a tree, and is not a biennial plant, but endures for many years, as in the warm plains of Irak, Arabia, and some parts of Africa.

What are Melons?

A species of the Cucumis, a genus of plants to which the cucumber belongs. There are great varieties of this fruit cultivated in different parts of the world; that sort called the Cantaleup (so named from being cultivated at a place of that name in the neighborhood of Rome, whither it was brought from Armenia,) is a species of musk-melon; the mature fruit is juicy, and delicately flavored.

Where is Armenia situated?

Armenia is a large country situated in Asiatic Turkey, to the west of the Caspian Sea.

What species of Melon is that which almost makes up for a scarcity of good water in hot countries?

The water-melon, which affords a cool, refreshing juice, and quenches the thirst produced by the excessive heats. It requires a dry, sandy soil, and a warm climate; the pulp of the fruit is remarkably rich and delicious.

What are Tamarinds?

The fruit of the Tamarind Tree, a native of both the Indies, Asia, Africa, &c. It is of a roundish form, and composed of two pods inclosed one within the other, between which is a soft pulpy substance, of a tart but agreeable taste; the inner pod contains the seeds or stones.

For what are they used?

We use them only as medicine; but the Africans, and many [68]of the Oriental nations, with whom they are common, make them into a kind of preserve with sugar, which they eat as a delicacy, and which cools them in the violent heats of their climate.

From what nation was the knowledge of their use in medicine obtained?

From the Arabians.

What does the word Oriental signify?

Belonging to the East; therefore those countries of the globe situated in the East are called Oriental, those in the West, Occidental, from Oriens, signifying East, and Occidens, West.

What are Dates?

The fruit of the Palm, a beautiful and graceful tree, peculiar to the warmer regions of the globe; the growth of the palm is extremely singular, for although some species attain to the height of the largest forest trees, their structure differs materially from that of a tree, properly so called. The leaves of the young plant arise directly from the surface of the ground, and there is no appearance of any stem for several years; this stem once formed, never increases in size, the growth of the plant being always upward, so that the stem itself is formed by the prior growth of the green portions of the palm.

How often does this tree cast its circle of leaves?

Every year; so that the number of years a palm has existed is known by the scars which are left by their falling off. The palm is an evergreen.

What are the uses of this Tree?

The Palm is of the utmost importance to the inhabitants of the tropical regions; the fruit and sap providing them with food, the fibrous parts with clothing, and the leaves forming the greater part of their slightly-constructed huts; the leaves of some species are formed into fans, hats, and parasols; others are written on, in the same manner that we write on paper; arti[69]ficial flowers are made of the pith of some; the light and supple rattan walking-cane is the slender shoot of another kind; and solid and useful utensils are made of the shell of the cocoa-nut. The fibres of the Date Palm are formed into ropes and twine; a liquor is drawn from the trunk, called palm wine; the trunks of the old trees furnish a hard and durable wood; and even the nuts or stones of the fruit are useful for feeding cattle; a wholesome flour is also made of the fruit, when dried and reduced to powder.

Whence is its name derived?

From the Latin word palma, a hand, given to these productions of the vegetable world, from the supposed resemblance of their broad leaves to the human hand. The Date, the fruit of the Date Palm, derives its name from the Greek dactylus, a finger, from its mode of growing in clusters spreading out like the fingers of the hand. The Palm sometimes forms impenetrable forests; but more frequently is found in small groups of two or three, or even singly, beside springs and fountains of water, affording a kindly shade to the thirsty traveller.

From what countries are Dates brought?

From Egypt, Syria, Persia, Africa, and the Indies. Among the Egyptians and Africans, they make a principal article of food. Dates, when ripe, are of a bright coral red, of an oblong form, and possess a sharp biting taste: they are usually gathered in autumn, before being perfectly ripe.

[70]

Of what are Hats made?

Of felt and wool. Dress hats for men's wear, were formerly made of beaver-fur, but the increasing scarcity of this article led to the introduction of silk plush as a substitute, and the result is that beaver is entirely superseded, and plush is used altogether. They possess many advantages over the beaver hat, as they are light, glossy, and durable. Hats are also made of straw, plaited and sewed together.

When did Hats come into general use?

The first mention made of hats is about the time of the Saxons, but they were not worn except by the rich. Hats for men were invented at Paris, by a Swiss, in 1404. About the year 1510, they were first manufactured in London, by Spaniards. Before that time both men and women in England commonly wore close, knitted, woollen caps. They appear to have become more common in the reign of Queen Elizabeth. It is related, that when Charles the Second made his public entry into Rouen, in 1449, he wore a hat lined with red velvet, surmounted with a plume or tuft of feathers; from which entry, or at least during his reign, the use of hats and caps is to be dated; and from that time they took the place of chaperons and hoods, that had been worn before in France.

Where is Rouen?

In the province of Lower Seine, in France; it was formerly the capital of Normandy.

Describe the Castor, or Beaver, and its habits.

The Beaver has a broad, flat tail, covered with scales, serving as a rudder to direct its motion in the water; the toes of its hind feet are furnished with membranes, after the manner of water-fowl; the fore feet supply the place of hands, like those [71]of the squirrel. The Beaver has two kinds of hair, of a light brown color, one long and coarse, the other short and silky. The teeth resemble those of a rat or squirrel, but are longer, and admirably adapted for cutting timber or stripping off the bark from trees.

Where do Beavers usually fix their habitations?

Their houses are always situated in the water; they are composed of clay, which they make into a kind of mortar with their paws: these huts are of an oval figure, divided into three apartments raised one above the other, and erected on piles driven into the mud. Each beaver has his peculiar cell assigned him, the floor of which he strews with leaves or small branches of the pine tree. The whole building is generally capable of containing eight or ten inhabitants.

On what does the Beaver feed?

Its food consists of fruit and plants; and in winter, of the wood of the ash and other trees. The hunters and trappers in America formerly killed vast numbers for their skins, which were in great demand, as they were used in making hats, but as the only use they are now put to is for trimming, and for men's gloves and collars, the demand has fallen off.

Of what are stockings made?

Of cotton, silk, or wool, woven or knitted. Anciently, the only stockings in use were made of cloth, or stuff sewed together; but since the invention of knitting and weaving stockings of silk, &c., the use of cloth has been discontinued.

From what country is it supposed that the invention of silk knitted stockings originally came?

From Spain, in 1589. The art of weaving stockings in a frame was invented by William Lee, M.A., of St. John's College, Cambridge, England.

[72]

Explain the signification of M.A.

Master of Arts, a degree of honor conferred by the Universities.

What are Shoes?

A covering for the foot, now usually made of leather. In different ages and countries, shoes have been made of various materials, as raw skins, rushes, broom, paper, silk, wool, iron, silver, and gold.

What nation wore Shoes made of the bark of the papyrus?

The Egyptians. The Turks always take off their shoes, and leave them at the door, when they enter Mosques or dwelling-houses. The same custom also prevails in other Eastern nations.

What is a Mosque?

A Mahomedan church or temple.

What is meant by Mahomedan?

Belonging to the religion of Mahomed, the warrior and prophet of Arabia and Turkey, who was its founder. He was born at Mecca, a city of Arabia, in 571; and died in 631, at Medina, a city situated between Arabia Felix and Arabia Deserta. His creed maintains that there is but one God, and that Mahomed is his Prophet; it enjoins the observance of prayers, washings, almsgiving, fasting, sobriety, pilgrimage to Mecca, &c.

What do the appellations of Felix and Deserta signify?

Arabia, a country of Asia, lying on the borders of the Red Sea, is divided into Petræa, Deserta, and Felix; Petræa, signifying the Stony; Deserta, the Desert; and Felix, the fortunate or fruitful.

What is Leather?

The skins of various animals, as oxen, cows, calves, &c., dressed and prepared for use.

How is the Leather prepared?

By tanning; that is, steeping the skins in an infusion of tan, by which they are rendered firm, durable, and, in a great degree, impervious to water.

[73]

What is Tan?

The bark of the oak-tree, &c., ground by a mill into a coarse powder.

What is Lime?[5]

A white, soft, friable, earthy substance, prepared from marble, chalk, and other lime-stones, or from shells, by burning in a kiln.

For what is it used?

Its greatest use is in the composition of mortar for building; it is also much used by tanners, skinners, &c., in the preparation of leather; by soap-boilers in the manufacture of soap; and by sugar-bakers for refining sugar.

What is a Kiln?

A fabric of brick or stone, formed for admitting heat in order to dry or burn materials placed in it.

Of what are Gloves made?

Of leather, silk, thread, cotton, worsted, &c.

What skins are generally used for Gloves?

Those of the chamois, kid, lamb, dog, doe, and many other animals.

What are Furs, and how are they prepared?

Furs are the skins of wild animals, dressed with the hair on, and used as apparel, either for warmth, ornament, or distinction of rank or dignity.

Name a few of the principal furs in use.

The fur of the ermine, an animal inhabiting the cold regions of Europe and America, is highly valued, and much used for ornamental purposes. In summer, the upper part of the body is of a yellowish-brown color; the under parts white, slightly tinged with yellow. It is then called a stoat. In winter, the [74]fur is closer and finer, and is of a snowy white color; the tip of the tail is black throughout the year. In Europe the fur is much used for ornamenting the state robes of sovereigns and nobles. The sable is another animal much prized for its rich fur; it is a native of Northern Europe and America. The skins of the marten, found in North America, as well as in Northern Asia and the mountains of Kamtschatka; and also of the bear, fox, raccoon, badger, lynx, musk-rat, rabbit, hare, and squirrel, which are all procured in North America, are valuable. One of the most valuable descriptions of fur is that of the seal.

How is it procured?

By hunting the animals, which is the employment both of natives and settlers from other countries; the hunters sell the skins for money, to a company established for the purpose of trading in furs, or more frequently exchange them for clothes, arms, and other articles. The Alaska Commercial Company of San Francisco is granted by the United States Government the exclusive privilege of catching the fur seal.

What is Alum?

A kind of mineral, of a strong, sharp taste. It dissolves both in cold and boiling water, but best in the latter. It is of some use in medicine; a principal ingredient in dyeing and coloring, neither of which can be well performed without it, as it sets and brightens the colors, and prevents them from washing out. It is also extremely useful in many arts and manufactures.

Are there not different sorts of this material?

The principal kinds are native alums: viz. those prepared and perfected underground by the spontaneous operations of nature; as the roch, commonly called rock alum, from Rocha, in Syria, whence it is brought.

What is Ink?

A liquor used in writing on paper or parchment, made of [75]copperas, galls; and gum arabic[6] mixed together. There are likewise several plants that may serve for the making of ink, as oak-bark, red roses, log-wood, &c. It is also made from an infusion of oak galls and iron filings: there are also many other ways, as well as materials, employed in the making of this useful article. Ink is the name applied to all liquids used in writing, of whatever color they may be, as red, blue, &c., though black is the most used for common purposes. The ink of the ancients seems to have been of a thick, oily nature, unlike the modern ink; it consisted of nothing more than a species of soot, or ivory black, mixed with one fourth of gum.

What is Copperas?

A kind of vitriol. Copperas is the name given to green vitriol, which is a preparation from iron. The blue vitriol is a sulphate of copper, and the white vitriol a sulphate of zinc.

For what is Vitriol used?

In the making of glass, to color it; in many arts and manufactures; and in medicine.

What are Galls?

Excrescences formed on a kind of oak tree in certain warm climates; perforations are made by an insect into the bark of the tree, whence issues a liquid which hardens by exposure. They are used in dyeing, making ink, and other compositions. There are two sorts of oak galls in our shops, brought from the Levant, and the southern parts of Europe.

What does the word Levant signify?

A country to the eastward. It is applied to the countries of Turkey, Greece, Asia Minor, Syria, Egypt, &c., which are washed by the eastern part of the Mediterranean.

Is the Ink used in Printing the same as writing Ink?

No; it is more of the nature of paint, being thicker and more glutinous: it chiefly consists of a mixture of oil and lamp[76]black, or some other ingredient, according to the color required; and is remarkable for the ease with which it adheres to paper that is moistened.

What is Indian, or Chinese Ink?

An admirable composition, not liquid like our ink, but solid, and made into cakes somewhat like the mineral colors we use in painting. It is made into all sorts of figures, usually long, and about an inch thick; sometimes gilt with the figures of birds, flowers, &c. To use this ink, it must be rubbed with water, on stone or earthenware, till it produces a beautiful, liquid, shining black. It is used in drawing, &c., and is brought from China. It is composed of lamp-black and size, or animal glue, or gum, to which perfumes and other substances are sometimes added.

What is the name of the remarkable stone of which a cloth has been made, that resists the action of fire?

The Asbestus, a mineral substance of a whitish or silver color. There are several species of this mineral, which are distinguished by different names, according to the appearance of each, as fibrous asbestus, hard asbestus, and woody asbestus; it is the fibrous sort which is most noted for its uses in the arts. It is usually found inclosed within very hard stones; sometimes growing on their outside, and sometimes detached from them.

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What are its qualities?

It is insipid; will not dissolve in water; and exposed to the fire, it neither consumes nor calcines. The industry of mankind has found a method of working upon this untoward mineral and employing it in making cloth and paper; the process is, however, difficult.

Was not this curious mineral better known to the ancients than it is at present?

The linen made from it was highly esteemed by them; it was not only better known, but more common, than among us, being equally valuable with the richest pearls; but the superiority of all other cloths to this in every respect, except the resistance to fire, has caused incombustible cloth to be regarded in modern times merely as a curiosity, but it is still employed in chemical preparations.

To what use did they put it?

In royal funerals, it formed the shroud to wrap the body in that its ashes might be prevented from mingling with the wood, &c., that composed the pile. Some of the ancients made themselves clothes of it, particularly the Brahmins among the Hindoos; it formed wicks for their perpetual lamps; thread, ropes, nets, and paper were also made of it. Pliny, the Roman naturalist, says he has seen napkins of asbestus taken soiled from the table after a feast, which were thrown into the fire, and by that means better scoured than if they had been washed with water.

Where is the Asbestus found?

This mineral is found in the greatest quantity in the silver mines of Saxony; at Bleyburg, in Carinthia; in Sweden, Corsica, and sometimes in France, England, and the United States; also in Tartary and Siberia.

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What method is used in preparing the Asbestus?

The stone is laid in warm water to soak, then opened and divided by the hands, that the earthy matter may be washed out. This washing is several times repeated, and the flax-like filaments collected and dried; these are easily spun with the addition of flax. The cloth when woven is best preserved by oil from breaking or wasting; on exposure to the fire, the flax and the oil burn out, and the cloth remains of a pure white. The shorter threads, which separate on washing the stone, may be made into paper in the usual manner.

What is Salt?

A saline crystallization of a sharp, pungent taste, and cleansing quality, used to season flesh, fish, butter, &c., and other things that are to be kept. It is distinguished, with reference to the general sources from which it is most plentifully derived, into three different sorts, namely, fossil, or rock salt; sea, or marine salt; and spring salt, or that drawn from briny springs and wells.

What is Fossil or Rock Salt?

That which is found in large beds in the bowels of the earth, and which has not undergone any artificial preparation; it is sometimes colorless, but more frequently red, yellow, or blue, and mixed with earthy impurities; this salt was entirely unknown to the ancients, who by rock salt meant that which adheres to the rocks above high-water mark, being lodged there by the spray of the sea, which is evaporated by the heat of the sun; this is the purest salt, and is to be found on the rocks of Sicily, and several islands of the West Indies.

What is Marine Salt?

That which is made from sea-water, concentrated by repeated evaporations, and at length crystallized.

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What is Spring Salt?

That salt which is not made from sea-water, but from the water of salt wells or springs; large quantities of this salt are made in the United States, in some parts of which saline springs are numerous.

In what manner is it obtained?

The means employed for extracting the salt from the water vary according to circumstances. In hot countries, the water is merely exposed to the action of the sun, until the water is evaporated; the salt procured in this manner is considered the best.

What method is usually employed in countries where the sun's heat is not sufficiently powerful?

In climates where the rays of the sun do not afford sufficient heat, the water, which has been partly evaporated in large shallow reservoirs formed in the earth, called salt-pans, is poured into enormous coppers and boiled for four or five hours: when the contents of the copper are wasted to half the quantity, the liquid begins to be crystallized; the vessel is again filled up, and the brine again boiled and purified: this is repeated three or four times. After the last purifying the fire is kept very low for twelve or fourteen hours, and when the moisture is nearly evaporated the salt is removed, and, after the remaining brine has drained off, is placed in the store-houses.

In what countries is Salt generally found?

This substance, so necessary to the comfort of mankind, is widely distributed over the face of the earth, and nothing, except, perhaps, the air we breathe, is more easily placed within our reach. The ocean is an exhaustless store-house of this valuable article. Those nations of the earth which are placed at a distance from the sea, find themselves provided with magazines of salt, either in solid masses, or dissolved in the waters of inland lakes, or issuing from the solid rocks in springs of brine. At Salina, Syracuse, and other places in Onondaga Co., [80]New York, salt springs are remarkably abundant, and yield annually several millions of bushels; immense quantities are also obtained from the salt-wells on the Great and Little Kanawha, and other places in Western Virginia; it is also extensively manufactured in the western part of Pennsylvania, and throughout the Western States.

Name the countries most noted for mines of Salt.

Poland, Upper Hungary, and the mountains of Catalonia, have extensive salt mines; those in the village of Wieliczca, in Poland, about five leagues from Cracow, are of a surprising depth and size. In the interior of Hindostan, there is a remarkable salt lake; and in several parts of the globe there are spots of ground impregnated entirely with this substance: an island of the East Indies contains a singular kind of fossil, or native dry salt; the soil there is in general very fruitful, but in certain parts of the island, there are spots of ground entirely barren, without the appearance of anything vegetable upon them; these spots taste very much of salt, and abound with it in such quantities, as to supply not only the whole island, but the greater part of the adjacent continent. In Utah Territory, especially in the neighborhood of the Mormon city, at the Great Salt Lake, are found extensive plains thus impregnated with salt, which is procured in great abundance.

To what use did the ancient inhabitants of Africa and Arabia put this substance?

The large slabs of rock salt, with which their country abounds, were employed by them instead of stones, in building their dwellings, the pieces being easily cemented together by sprinkling the joints with water, which, melting the parts of the two surfaces that opposed each other, formed the whole, when dry, into one solid block.

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Does Rock Salt undergo any preparation before it is used?

Yes; when taken from the earth it is dissolved in cold water, and afterwards drawn off into salt-pans, and refined in the same manner as the sea salt.

What is Coal?

A hard, black, sulphurous and inflammable substance, dug out of the earth, serving in many countries as fuel. It is common in most of the countries of Europe and America. In some parts of the United States, it is found in beds having an area of several thousand square miles.

From what is Coal supposed to have originated?

Its origin is supposed to be derived from gigantic trees which flourished in the swamps and forests of the primeval earth. These having been torn away from their native bed, by storms and inundations, were transported into some adjacent lake, river, or sea. Here they floated on the waters until, saturated with them, they sank to the bottom, and being buried in the lower soil of adjacent lands, became transformed into a new state among the members of the mineral kingdom. A long interment followed, during which a course of chemical changes, and new combinations of their vegetable elements, converted them to the mineral condition of coal.

What is a Coal Mine?

A subterraneous excavation, from which coal is obtained.

Do the terms Coal and Charcoal signify the same substance?

No; Charcoal is an artificial fuel, made in imitation of coal, by burning wood covered with earth so as partially to exclude the air. It is used for various purposes, as the making of gunpowder,[7] polishing brass and copper, &c., and when a clear and[82] bright fire is required, as it burns with little or no smoke; it is dangerous, however, for one to remain many hours in a close room with a charcoal fire, as the fumes it throws out are hurtful, and would destroy life. Charcoal, in fact, is the coaly residuum of any vegetables burnt in close vessels; but the common charcoal is that prepared from wood, and is generally black, very brittle, light, and destitute of taste or smell. It is a powerful antiseptic, unalterable and indestructible.

What is Iron?

One of the most useful and abundant metals; being found in all mineral earths, and stones; in plants, and animal fluids; and is the chief cause of the varieties of color in all. Iron is found in great masses, in various states, in the bowels of the earth; it is usually, however, compounded with stone, from which it is separated by the action of fire. In some parts of the world, whole mountains are formed of iron; among these may be mentioned the Pilot Knob and the Iron Mountain, in Missouri, being unsurpassed by anything of the kind found elsewhere.

What are its characteristics?

It is hard, fusible, not very malleable, but extremely ductile, and very tenacious; it is of a greyish color, and nearly eight times heavier than water. Without iron, society could make no progress in the cultivation of the ground, in mechanical arts or trades, in architecture or navigation; it is therefore of the greatest use to man. Iron tools have been used in all European countries as long as their histories have existed; this metal appears likewise to have been known and used by the inhabitants of the world in the earliest ages, being frequently mentioned in the Holy Scriptures. In the fourth chapter of Genesis, Tubalcain is spoken of as "a hammerer and artificer in every work of brass and iron," and thus their existence was evidently known at that early period of the world.

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THE SALT MINES OF WIELICZCA.

What do you mean by Metals?

Useful substances dug from the bowels of the earth, being sometimes found pure, but mostly combined with other matter. They are distinguished by their weight, tenacity, hardness, opacity, color, and peculiar lustre, known as the metallic lustre; they are fusible by heat, and good conductors of heat and electricity; many of them are malleable, and some extremely ductile. Those which were first known are gold, silver, iron, copper, mercury, lead, and tin.

What are Metals called in their natural state?

Ores; so named because the metal contained in them is either mixed with other metals, or with mineral earths, from which they are separated and purified by various means: such as washing, roasting, &c., but the method is always regulated by the nature of the ore.

What is Copper?

A hard, heavy, ductile metal, found native, and in many ores; of these the most important is copper pyrites, which is a sulphuret of copper. Next to gold, silver, and platinum, copper is the most malleable and ductile of metals; it may be drawn into wires as fine as hair, or beaten into leaves as thin as those of silver. The rust of copper is very poisonous. Copper, mixed with a certain quantity of tin, forms bell-metal. With a smaller proportion, it forms bronze, a substance used in sculpture for casting figures and statues. It is an abundant metal, and is found in various parts of the world. Native oxides of copper are found in Cornwall, Siberia, and in North and South America.

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What are the uses of Copper?

They are too various to be enumerated. In sheets it is much used to sheathe the bottoms of ships, for boilers, and other utensils. Copper coin was the only money used by the Romans till the 485th year of their city, when silver began to be coined. In Sweden, houses are covered with this metal.

What is a Mine?

A cavity under ground, formed for the purpose of obtaining metals, &c.; mines are often very deep and extensive. The descent into them is by a pit, called a shaft; the clues by which mines are discovered, are, mineral springs, the discoloration of vegetables, the appearance of pieces of ore, &c.

What is Brass?

A factitious metal, consisting of copper and zinc. Brass is lighter and harder than pure copper, and less subject to rust; owing to these properties, together with its beautiful color, it is extremely useful in the manufacture of many utensils.

What is Zinc?

A metal of a brilliant bluish white color. Its name was unknown to the ancient Greeks and Arabians. It is mixed with other substances in the ore, from which it is obtained by smelting in the furnace. It has never yet been found native or pure.

For what is Zinc used?

From its readiness to dissolve in all acids, and unite with other metals, it is used in alloy with them in the composition of brass, &c. Thin sheets of zinc are also used to cover roofs of houses, and in the manufacture of various household utensils.

What is Lapis Calaminaris?

Lapis Calaminaris, or calamine stone, is a native carbonate of zinc, of some use in medicine, but chiefly in founding. It [85]is, sometimes brownish, as that found in Germany and England, or red, as that of France. It is dug out of mines, usually in small pieces; generally out of those of lead. Calamine is mostly found in barren, rocky soils.

What are Yams?

The roots of a climbing plant growing in tropical climates. The root of the yam is wholesome and well-flavored; nearly as large as a man's leg, and of an irregular form. Yams are much used for food in those countries where they grow; the natives either roast or boil them, and the white people grind them into flour, of which they make bread and puddings. The yam is of a dirty brown color outside, but white and mealy within.

What are Mangoes?

The fruit of the Mango Tree, a native of India and the south-western parts of Asia; it also grows abundantly in the West Indies and Brazil. It was introduced into Jamaica in 1782; where it attains the height of thirty or forty feet, with thick and wide-extended branches. The varieties of the mango are very numerous,—upwards of eighty are cultivated; and the quality of these varies according to the countries and situations in which they grow. The mangoes of Asia are said to be much better than those of America.

Describe the appearance of the Mango Tree.

The flowers of this tree are small and whitish, formed in [86]pyramidal clusters. The fruit has some resemblance to a short thick cucumber, about the size of a goose's egg; its taste is delicious and cooling; it has a stone in the centre, like that of a peach. At first this fruit is of a fine green color, and some varieties continue so, while others change to a fine golden or orange color. The mango tree is an evergreen, bearing fruit once or twice a year, from six or seven years old to a hundred.

How is this fruit eaten?

When ripe, it is eaten by the natives either in its natural state, or bruised in wine. It is brought to us either candied or pickled, as the ripe fruit is very perishable; in the latter case, they are opened with a knife, and the middle filled up with fresh ginger, garlic, mustard, salt, and oil or vinegar. The fruit of the largest variety weighs two pounds or upwards. The several parts of this tree are all applied to some use by the Hindoos: the wood is consecrated to the service of the dead; from the flour of the dried kernels different kinds of food are prepared; the leaves, flowers, and bark, are medicinal.

Is there not a tree which bears a fruit that may be used for bread?

Yes; the Bread-fruit Tree, originally found in the southeastern parts of Asia and the islands of the Pacific Ocean, though introduced into the tropical parts of America. It is one of the most interesting, as well as singular productions of the vegetable kingdom, being no less beautiful than it is useful. This tree is large and shady; its leaves are broad and indented, like those of the fig tree—from twelve to eighteen inches long, rather fleshy, and of a dark green. The fruit, when full-grown, is from six to nine inches round, and of an oval form—when ripe, of a rich, yellow tinge; it generally hangs in clusters of two or three, on a small thick stalk; the pulp is white, partly [87]farinaceous, and partly fibrous, but when ripe, becomes yellow and juicy.

How is the Bread-Fruit eaten?

It is roasted until the outside is of a brown color and crisp; the pulp has then the consistency of bread, which the taste greatly resembles; and thus it forms a nourishing food: it is also prepared in many different ways, besides that just mentioned. The tree produces three, sometimes four crops in a year, and continues bearing for fifty years, so that two or three trees are enough for a man's yearly supply. Its timber, which at first is of a rich yellow, but afterwards assumes the color of mahogany, is used in the building of houses and canoes; the flowers, when dried, serve as tinder; the sap or juice serves for glue; the inner bark is made, by the natives of some of the islands of the Pacific Ocean, into a kind of cloth; and the leaves are useful for many purposes. One species of the bread-fruit, called the Jaca tree, grows chiefly on the mainland of Asia.

Describe the Jaca Tree.

This kind grows to the same, if not a larger size than the bread-fruit of the islands, but is neither so palatable nor so nutritious; the fruit often weighs thirty pounds, and contains two or three hundred seeds, each four times as large as an almond. December is the time when the fruit ripens; it is then eaten, but not much relished; the seeds are also eaten when roasted. There are also other trees in different parts of the world, mostly of the palm species, which yield bread of a similar kind.

Is there not a tree which produces a substance resembling the Butter which we make from the milk of the cow?

The Shea, or Butter Tree, a native of Africa: it is similar in appearance to the American oak, and the fruit, (from the kernel of which the butter is prepared,) is somewhat like an [88]olive in form. The kernel is inclosed in a sweet pulp, under a thin, green rind.

How is the Butter extracted?

The kernel, being taken out and dried in the sun, is boiled in water; by which process a white, firm, and rich-flavored butter is produced, which will keep for a whole year without salt. The growth and preparation of this commodity is one of the first objects of African industry, and forms a principal article of their trade with one another.

You have given me an account of a useful Butter prepared from a plant; is there not also a tree which can supply the want of a cow?

In South America there is a tree, the juice of which is a nourishing milk; it is called the Cow Tree. This tree is very fine; the leaves are broad, and some of them ten inches long; the fruit is rather fleshy, and contains one or two nuts or kernels. The milk is very abundant, and is procured by incisions made in the trunk of the tree; it is tolerably thick, and of a glutinous quality, a pleasant taste, and agreeable smell. The negroes and people at work on the farms drink it, dipping into it their bread made of maize.

What time of the day is the best for drawing the juice?

Sunrise; the blacks and natives then hasten from all quarters with large bowls to receive the milk; some drink it on the spot, others carry it home to their families.

What island possesses a remarkable substitute for the want of springs of Water?

Ferro, one of the Canary Isles, situated in the Atlantic Ocean. In this island there is no water, except on a part of the beach which is nearly inaccessible; to supply the place of a fountain, Nature has bestowed on the island a particular kind [89]of tree, unknown in other parts of the world. It is of a moderate size, with straight, long, evergreen leaves; on its top a small cloud continually rests, which so drenches the leaves with moisture, that it perpetually distils upon the ground a stream of clear water. To these trees, as to perennial springs, the inhabitants of Ferro repair, and are supplied with abundance of water for themselves and cattle.

What is Licorice?

A plant, the juice of which is squeezed from the roots, and then boiled with sugar, and used as a remedy for coughs, &c. Great quantities are exported from Spain, Italy, &c. The dried root is of great use in medicine, and makes an excellent drink for colds and other affections of the lungs by boiling it with linseed.

What are the Lungs?

The organs of respiration in man and many other animals. There are two of these organs, one on each side of the chest.

What is Manna?

A sweet, white juice, oozing from the branches and leaves of a kind of ash tree, growing chiefly in the southern parts of Italy, during the heats of summer. When dry, it is very light, easily crumbled, and of a whitish, or pale yellow color, not unlike hardened honey.

Is Manna peculiar to the Ash Tree of Southern Italy?

No. Manna is nothing more than the nutritious juices of the tree, which exude during the summer heats; and what confirms this is, that the very hot summers are always those which are most productive of manna. Several different species of trees produce a kind of manna; the best and most used is, however, that of Calabria, in Italy.

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What are its uses?

It was much esteemed formerly in medicine, but it has now gone nearly into disuse. The peasants of Mount Libanus eat it as others do honey. The Bedouin Arabs consume great quantities, considering it the greatest dainty their country affords. In Mexico, they are said to have a manna which they eat as we do cheese. At Briançon, in France, they collect it from all sorts of trees that grow there, and the inhabitants observe, that such summers as produce the greatest quantities of manna are very fatal to the trees, many of them perishing in the winter.

Is there not another tree which produces Manna?

Yes: the Tamarisk, a tree peculiar to Palestine and parts of Arabia. This remarkable substance is produced by several trees, and in various countries of the East. On Mount Sinai there is a different species of Tamarisk that yields it. It is found on the branches of the tree, and falls on the ground during the heat of the day.

Where is Mount Libanus?

Mount Libanus, or Lebanon, is situated in Asiatic Turkey; it was anciently famous for its large and beautiful cedar trees. The "Cedars of Lebanon" are frequently mentioned in Holy Writ. There are now scarcely any remaining of superior size and antiquity, but they vary from the largest size down to mere saplings; and their numbers seem to increase rather than diminish, there being many young trees springing up.

How is Manna gathered?

From August to September, the Italians collect it in the following manner, viz.: by making an incision at the foot of the tree, each day over that of the preceding, about four inches from one another: these cuts, or incisions, are nearly two inches long, and half an inch deep. When the cut is made, the manna directly begins to flow, at first like clear water, but congealing as it flows, it soon becomes firm: this they collect in baskets. Manna has been found to consist of two distinct substances [91]one nearly resembling sugar, the other similar to a gum or mucilage.

What nation was fed with a kind of Manna?

The Children of Israel, when wandering in the desert wilderness, where no food was to be procured, were fed by a miraculous supply of manna, showered down from Heaven every morning on the ground in such quantities as to afford sufficient food for the whole host.

What is Opium?

A narcotic, gummy, resinous juice, drawn from the head of the white poppy, and afterwards thickened; it is brought over in dark, reddish brown lumps, which, when powdered, become yellow.

In what countries is it cultivated?

In many parts of Asia, India, and even the southern parts of Europe, whence it is exported into other countries. The Turks, and other Eastern nations, chew it. With us it is chiefly used in medicine. The juice is obtained from incisions made in the seed-vessels of the plant; it is collected in earthen pots, and allowed to become sufficiently hard to be formed into roundish masses of about four pounds weight. In Europe the poppy is cultivated mostly for the seeds. Morphia and laudanum are medicinal preparations of opium.

What is Tobacco?

An herbaceous plant which flourishes in many temperate climates, particularly in North America; it is supposed to have received its name from Tabaco, a province of Mexico; it is cultivated in the West Indies, the Levant, on the coast of Greece, in the Archipelago, Malta, Italy, France, Ceylon, &c. It was not known in Europe till the discovery of America by the Spaniards; and was carried to England about the time of Queen Elizabeth, either by Sir Francis Drake or Sir Walter Raleigh. Tobacco is either taken as snuff, smoked in pipes or in the form [92]of cigars, or chewed in the mouth like opium. There are many different species of this plant, most of them natives of America, some of the Cape of Good Hope and China. Tobacco contains a powerful poison called nicotine.

What part of the plant is used?

The leaves, which are stripped from the plant, and after being moistened with water, are twisted up into rolls; these are cut up by the tobacconist, and variously prepared for sale, or reduced into a scented powder called snuff.

Who was Sir Francis Drake?

Sir Francis Drake was a distinguished naval officer, who flourished in the reign of Elizabeth. He made his name immortal by a voyage into the South Seas, through the Straits of Magellan; which, at that time, no Englishman had ever attempted. He died on board his own ship in the West Indies, 1595.

Who was Sir Walter Raleigh?

Sir Walter Raleigh was also an illustrious English navigator and historian, born in 1552. He performed great services for Queen Elizabeth, particularly in the discovery of Virginia, and in the defeat of the Spanish Armada; he lived in honor and prosperity during her reign, but on the accession of James the First, was stripped of his favor at court, unaccountably accused of high treason, tried, and condemned to die; being reprieved, however, he was imprisoned in the Tower of London many years, during which time he devoted himself to writing and study. Receiving, at last, a commission to go and explore the gold mines at Guiana, he embarked; but his design having been betrayed to the Spaniards, he was defeated: and on his return to England, in July, 1618, was arrested and beheaded, (by order of the King, on his former attainder,) October 29; suffering his fate with great magnanimity.

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What is Gum?

A mucilaginous juice, exuding from the bark of certain trees or plants, drawn thence by the warmth of the sun in the form of a glutinous matter; and afterwards by the same cause rendered firm and tenacious. There are many different gums, named after the particular tree or plant from which they are produced.

What is the character of Gum?

Gum is capable of being dissolved in water, and forming with it a viscid transparent fluid; but not in vinous spirits or oil; it burns in the fire to a black coal, without melting or catching fire; and does not dissolve in water at boiling heat. The name of gum has been inaccurately given to several species of gum-resins, which consist of resin and various other substances, flowing from many kinds of trees, and becoming hard by exposure to the air. These are soluble in dilute alcohol. Gum is originally a milky liquor, having a greater quantity of water mixed with its oily parts, and for that reason it dissolves in either water or oil. Another sort is not oily, and therefore dissolves in water only, as gum Arabic, the gum of the cherry-tree, &c.

Are the last-mentioned sorts properly called Gums?

No, though commonly called gums, they are only dried mucilages, which were nothing else than the mucilaginous lymph issuing from the vessels of the tree, in the same manner as it does from mallows, comfrey, and even from the cucumber; the vessels of which being cut across, yield a lymph which is plainly mucilaginous, and if well dried, at length becomes a kind of gum, or rather, a hardened mucilage.

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What is Gum Arabic?

The juice of a small tree of the Acacia tribe, growing in Egypt, Arabia Petræa, Palestine, and in different parts of America.

Are there other plants or trees which produce Gum, besides those already mentioned?

A great number, though not all commonly in use. The leaves of rhubarb, the common plum, and even the sloe and the laurel, produce a clear, tasteless gum; there are also a number of different gums, brought from foreign countries, of great use in medicine and the arts. Most of the Acacias produce gums, though the quality of all is not equally good.

What is Rhubarb?

A valuable root growing in China, Turkey, and Russian Tartary. Quantities of it are imported from other parts of the world: that from Turkey is esteemed the best. Rhubarb is also cultivated in our gardens, and the stalks of the leaves are often used in tarts; but the root, from the difference of climate, does not possess any medicinal virtue.

When were Spectacles invented, and who was their inventor?

It is supposed that they were first known about the thirteenth century, and invented by a monk of Pisa, in Italy, named [95]Alexander de Spina. Spectacles are composed of two circular pieces of glass set in a frame.

What are these glasses called?

Lenses. They are either convex or concave, according to the kind of sight requiring them. Old people, and those who can only see things at a distance, from the flatness of the eye, which prevents the rays of light converging so as to meet in the centre, require convex lenses. People who can only distinguish objects when viewed closely, from the eye being too convex, require concave lenses to counteract it by spreading the rays, and thus rendering vision distinct.

What is the Mariner's Compass?

A most useful and important instrument, by the aid of which the navigator guides his ship on the sea, and steers his way to the place of his destination. The inventor of the Mariner's Compass is not known, nor the exact time of its introduction; it was employed in Europe in navigation about the middle of the thirteenth century, and has been in use more than five hundred years. The Chinese are said to have been acquainted with it much earlier, but no reliance can be placed on their dates. The power of the loadstone to attract iron was known to the ancient Egyptians, but it was not applied to any practical purpose.

What is the Loadstone?

An ore of iron which possesses the peculiar property of attracting iron, namely, of drawing it in contact with its own mass, and holding it firmly attached by its own power of attraction. A piece of loadstone drawn several times along a needle,[96] or a small piece of iron, converts it into an artificial magnet; if this magnetized needle is carefully balanced, it will turn round of itself, till its end points towards the North. The magnetized needle also possesses the power of attracting iron, and of communicating this power to another piece of iron or steel, similar to that of the loadstone itself.

Describe the Mariner's Compass.

The Mariner's Compass consists of a circular box, enclosing a magnetized bar of steel, called the needle, carefully balanced on an upright steel pivot, and having that end which points to the North shaped like the head of an arrow; attached to this needle, and turning with it, is a card on which are printed the divisions of North, South. East, and West; called the points of the compass. By simply looking at the position of the needle, the mariner can see the direction in which his vessel is sailing, and regulate his helm accordingly.

What is a Barometer?

An instrument for measuring the weight of the atmosphere, which enables us to determine the changes of the weather, the height of mountains, &c. It consists of a glass tube hermetically sealed at one end, filled with mercury, and inverted in a basin of mercury; according to the weight of the atmosphere, this mercury rises or falls.

How is the Hermetic seal formed?

By heating the edges of a vessel, till they are just ready to melt, and then twisting them closely together with hot pincers, so that the air may be totally excluded. The word is taken from Hermes, the Greek name for Mercury, the heathen god of arts and learning, and the supposed inventor of chemistry,[9] which is sometimes called the hermetical art; or perhaps from Hermes, an ancient king of Egypt, who was either its inventor, or excelled in it.

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What is Mercury?

Quicksilver, or mercury, is a white fluid metal, the heaviest except platina and gold; it readily combines with nearly all other metals, and is used in the manufacture of looking-glasses, barometers, thermometers, &c.; in some of the arts, and in the preparation of several powerful medicines. It is found in California, Hungary, Sweden, Spain, China, and Peru. The quicksilver mine of Guança Velica, in Peru, is one hundred and seventy fathoms in circumference, and four hundred and eighty deep. In this profound abyss are seen streets, squares, and a chapel, where religious worship is performed. The quicksilver mines of Idria, a town of Lower Austria, have continually been wrought for more than 300 years. The vapor which is continually arising from the mercury is very hurtful to the miners, who seldom survive many years.

In what state is Mercury usually found?

Either native, or in the form of ore; it is often found mixed with silver, but more frequently with sulphur in the form of sulphuret, which is decomposed by distillation. Running mercury is found in globules, in America, and is collected from the clefts of the rocks. Mercury has the appearance of melted silver; it is neither ductile nor malleable in this state; it is a substance so volatile, when heated, that it may be evaporated like water; it is always seen in a fluid state, even in temperate climates, as a very small portion of heat is sufficient to preserve its fluidity. It is used to separate gold and silver from the foreign matter found with those metals. Calomel, a valuable medicine, and vermilion, a color, are both preparations of mercury.

What is a Thermometer?

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An instrument for measuring temperature. It consists of a fine glass tube, terminated at one end in a bulb, usually filled with mercury, which expands or contracts according to the degree of heat or cold. On the scale of the Fahrenheit thermometer, the freezing point of water is marked 32° and the boiling point at 212°. In both the Centigrade and the Reaumur scales the freezing point is at 0, and the boiling point at 100° in the Centigrade and at 80° in Reaumur's. The invention of this instrument dates from about the close of the sixteenth century; but it is not known by whom it was first brought into use.

When and by whom were Watches and Clocks invented?

Watches were invented about the year 1500, but who was the inventor is disputed. They were, however, of little value as time-keepers, before the application of the spiral spring as a regulator to the balance; the glory of this excellent invention lies between Dr. Hooke and M. Huygens; the English ascribing it to the former, the Dutch, French, &c., to the latter. Some assert that pocket-watches were first made about 1477, at Nuremberg, in Germany. The most ancient clock of which we possess any certain account, was made in 1634 by Henry de Wycke, a German artist; it was erected in a tower of the palace of Charles V., king of France. The pendulum was applied by Huygens, in 1656.

What is a Pendulum?

A weight so suspended from a fixed point that it may easily swing backward and forward; its oscillations are always performed in equal times, provided the length of the pendulum and the gravity remain the same. It is said that the idea of employing the pendulum for the measurement of time, was first conceived by Galileo, while a young man, upon his observing attentively the regular oscillations of a lamp suspended from the roof of a church in Pisa. It was not, however, till the time of Huygens that a method was devised of continuing its motions, and registering the number of its oscillations.

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CHARCOAL BURNING.

GOLD MINERS WASHING ORE.

To whom is the invention of Gunpowder ascribed?

Most authors suppose it was invented by Bartholdus Schwartz, a monk of Goslar, a town of Brunswick, in Germany, about the year 1320; it appears, however, that it was known much earlier in many parts of the world, and that the famous Roger Bacon, who died in 1292, knew its properties; but it is not certain that he was acquainted with its application to fire-arms.

Who was Roger Bacon?

A learned Franciscan, born at Ilchester, England, in 1214. He studied at Oxford, and afterwards became professor at that great University. He was familiar with every branch of human knowledge, but was especially distinguished for his extraordinary proficiency in the natural sciences. To him we owe the invention of the telescope; that of gunpowder is ascribed to him, as stated above, although we have no evidence to show whether he discovered its ingredients himself, or whether he derived the knowledge from some ancient manuscripts. Bacon suffered some from the ignorance of the age in which he lived, many of his experiments being looked upon as magic. He died at Oxford in the year 1294.

What is understood by Magic?

Magic is a term used to signify an unlawful and wicked kind of science, depending, as was pretended, on the assistance of superhuman beings and of departed souls. The term was anciently applied to all kinds of learning, and in particular to the science of the Magi or Wise Men of Persia, from whom it was called magic. Natural magic is no more than the application of natural active causes to passive things or subjects, to produce effects apparently supernatural.

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Of what is Gunpowder composed?

Of saltpetre,[10] sulphur, and charcoal, mixed together and powdered; its explosive force when fired, is owing to the instantaneous and abundant liberation of gaseous matter by the intense heat resulting from the action of the combustibles upon the saltpetre. It is not known by whom it was first applied to the purposes of war, but it is certain that it was used early in the fourteenth century. Cannons were used at the battle of Cressy, in 1346; small guns, or muskets, were introduced into the Spanish army in 1521.

Is not Gunpowder highly combustible?

So combustible is gunpowder, that a single spark of fire, lighting upon any of it, will cause it to explode with immense force; and instances have occurred, when any store or magazine of it has taken fire, that have been attended with the most fatal effects. It is useful to the miner and engineer as a ready means of overcoming the obstacles which are presented in their search for mineral treasures, and in procuring materials for building. From many passages in the ancient authors, there is reason to suppose that gunpowder, or a composition extremely like it, was known to them; but it does not appear to have been in general use, and the invention of fire-arms is comparatively modern. Dynamite, a recent invention, has a still greater explosive force than gunpowder.

What is Saltpetre?

A bitter kind of salt, called by the ancients nitre, but more commonly among us saltpetre. It is composed of nitric acid and potassa.[11] It is found in earthy substances; sometimes native or pure, in the form of a shapeless salt. Vast quantities [101]are found in several of the marly earths of the East Indies, China, Persia, and also in South America. In India it is found naturally crystallized, and forming thin crusts upon the surface of the earth. It is especially abundant in the United States, being found in immense quantities in the limestone caves in the south-western States.

What do you mean by Marly?

Consisting of marl, a kind of earth composed of different proportions of clay and carbonate of lime; it is much used for manure. There are several different-colored marls, each possessing different qualities. The most common are the red and the white, though there are grey, brown, blue, and yellow colored marls.

What is a Telescope?

An optical instrument, which serves for discovering and viewing distant objects, either directly by glasses, or by reflection. The invention of the telescope is one of the noblest and most useful of which modern ages can boast, since by means of this instrument the wonderful motions of the planets and fixed stars, and all the heavenly bodies, are revealed to us. The honor of the invention is much disputed; it is certain, however, that the celebrated Galileo was the first who improved the telescope so as to answer astronomical purposes. The name is formed from two Greek words, one signifying far, the other to observe.

Who was Galileo?

A most eminent astronomer and mathematician, born at Florence, in Italy. His inventions and discoveries in Astronomy, Geometry, and Mechanics, contributed much to the advancement of those sciences. He died in 1642.

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What is Astronomy?[12]

That science which teaches the knowledge of the heavenly bodies, with the nature and causes of their various phenomena.

What is Geometry?

An ancient, perfect, and beautiful science, which treats of the relations and properties of lines, surfaces, and solids.

What is meant by Mechanics?

The science which investigates the laws of forces and powers, and their action on bodies, either directly or by machinery. When the term mechanic is applied to a person, it means one skilled in mechanics, accustomed to manual labor.

What is a Microscope?

An optical instrument, by means of which very minute objects are represented exceedingly large, and viewed very distinctly according to the laws of refraction or reflection. Nothing certain is known respecting the inventor of microscopes, or the exact time of their invention, but that they were first used in Germany, about 1621.

What is the Steam Engine?

A machine that derives its moving power from the force of the steam produced from boiling water, which is very great, especially when, as in the steam engine, it is confined within a limited compass: this useful machine is one of the most valuable presents that the arts of life have received from the philosopher, and is of the greatest importance in working mines; supplying cities with water; in working metals; in many mechanical arts; and in navigation. By the aid of steam, vessels [103]are propelled with greater swiftness than those which are wholly dependent on the winds and tides; and thus trade is facilitated, and we are enabled to communicate with distant lands in a much shorter space of time than was formerly consumed. On land, railroads are constructed, on which steam carriages run with astonishing rapidity, so that a journey which by coach and horses formerly required two or more days, may now be performed in four or five hours.

To whom are we indebted for its invention?

Its invention is by most writers ascribed to the Marquis of Worcester, an Englishman, about 1663; but it does not appear that the inventor could ever interest the public in favor of this, or his other discoveries. The steam engine of Captain Savery, also an Englishman, is the first of which any definite description has been preserved. It was invented in 1698. Since that period it has been successively improved by various persons, but it is to Mr. Watt and Mr. Boulton, of England, that it is indebted for much of its present state of perfection.

By whom was the Steam Engine first applied to the purposes of Navigation?

By John Fitch, of Pennsylvania. From papers in the historical collections of Pennsylvania, it appears that the first successful experiments were made at Philadelphia, in 1785, three years before the attempts at Falkirk, and on the Clyde, in Scotland. The boat made several trips on the Delaware and Schuylkill rivers, but owing to repeated accidents to her machinery, and the want of funds and competent mechanics for the necessary repairs, she was abandoned. In 1807, Robert Fulton, also of Pennsylvania, made his first experimental trip on the Hudson River, with complete success. To this distinguished and ingenious American justly belongs the honor of having brought navigation by steam to a state of perfection. In 1819, the first steamship crossed the Atlantic from Savannah [104]to Liverpool; and in 1838, a regular communication by steamship was established between Great Britain and the United States. Since that period, ocean navigation by steam-vessels has made rapid progress, and, at the present time, numbers of steamers connect our various seaports with those of other nations, and with each other.

What is the Electro-Magnetic Telegraph?

An instrument, or apparatus, by means of which intelligence is conveyed to any distance with the velocity of lightning. The electric fluid, when an excess has accumulated in one place, always seeks to transfer itself to another, until an equilibrium of its distribution is fully restored. Consequently, when two places are connected by means of a good conductor of electricity, as, for instance, the telegraphic wire; the fluid generated by a galvanic battery, if the communication be rendered complete, instantaneously traverses the whole extent of the wire, and charges, at the distant station, an electro-magnet; this attracts one end of a lever, and draws it downward, while the other extremity is thrown up, and, by means of a style, marks a slip of paper, which is steadily wound off from a roller by the aid of clock-work. If the communication is immediately broken, only one wave of electricity passes over, and a dot is made upon the paper; if kept up, a line is marked. These dots and lines are made to represent the letters of the alphabet, so that an operator employed for the purpose can easily read the message which is transmitted.—The Electro-Magnetic Telegraph was first introduced upon a line between Baltimore and Washington, by Professor Morse, in 1844; at the present time, it is in successful operation between nearly all the important cities and towns of the United States and of Europe.

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Of what is Soap composed?

Of soda or potash, and various oily substances; it is so useful for domestic and other purposes, that it may be regarded as one of the necessaries of life; immense quantities of it are consumed in all civilized countries. Soft soap is generally made of a lye of wood-ashes and quicklime, boiled up with tallow or oil; common household soap of soda and tallow, or of potash and tallow; when potash is used, a large portion of common salt, which contains soda, is added to harden it. The finest white soaps are made of olive oil and a lye consisting of soda and quicklime; perfumes are sometimes added, or various coloring matters stirred in to give the soap a variegated appearance. The ancient Greeks and Hebrews appear to have been acquainted with the art of making soap, or a composition very similar to it; and also the ancient Gauls and Germans. A soap-boiler's shop, with soap in it, was found in the city of Pompeii, in Italy, which was overwhelmed by an eruption of Mount Vesuvius, A.D. 79.

What is Soda?

Soda, or barilla, is obtained from the ashes of marine plants, and by the decomposition of common salt; its great depository is the ocean, soda being the basis of salt. The marine plants from which the soda is obtained, are endowed with the property of decomposing the sea-salt which they imbibe, and of absorbing the soda which it contains. It is found native in Egypt, and is there called natron; a name similar to that which it bore among the Jews and Greeks.

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Of what are Candles made?

Of Tallow, which means animal fat melted and clarified, that is, cleansed or purified from filth. Tallow is procured from many animals, but the most esteemed, and the most used, is that made from oxen, sheep, swine, goats, deer, bears, &c.; some of which tallows or fats are used in medicine, some in making soap, and dressing leather; others in the manufacture of candles, &c. For the last-mentioned article, that of sheep and oxen is most used; candles of a better sort are likewise made of wax and spermaceti. Candles are kept burning by means of a wick of cotton or rush, placed in the centre of the tallow, which is moulded into a cylindrical form.

Is there not a tree which yields a vegetable Tallow?

Yes; China possesses a tree producing a substance like our tallow, of which the Chinese make their candles; this tallow is extracted from the stone of the fruit, the tallow being a white pulp which surrounds it. In America, likewise, there is a shrub, a native of the temperate parts, especially towards the sea-side, the seeds of which contain a waxy substance used for the same purpose, and which is extracted by boiling; this shrub is a species of myrtle, and does not attain to any great size.

What is Spermaceti?

A whitish, flaky, unctuous substance, prepared from an oil of the same name, drawn from a particular kind of whale, distinguished from the common whale by having teeth, and a hunch on its back.

What is Wax?

A soft, yellow, concrete matter, collected from vegetables by [107]the bee, of which this industrious and useful insect constructs its cell. Wax forms a considerable article of trade; it is of two kinds, the yellow and the white; the yellow is the native wax as it is taken from the hive, and the white is the same washed, purified, and exposed to the air.

What Tree produces the beautiful and well-known wood so much used in making the various articles of household furniture?

The Mahogany Tree, growing in America, and the East and West Indies; it frequently grows in the crevices of rocks, and other places of the same description. This wood was not used for making furniture till near the end of the seventeenth century. A London physician had a brother, the captain of a West India ship, who, on his return to England, having on board several logs of mahogany for the purpose of ballast, made him a present of the wood, he being engaged in a building project; his carpenter, however, threw it aside, observing that it was too hard to be wrought. Some time after, the lady of the physician being in want of a box to hold candles, the cabinet-maker was directed to make it of this wood; he also made the same objection, and declared that it spoiled his tools. Being urged, however, to make another trial, he at length succeeded; when the box was polished, the beautiful color of the wood was so novel, that it became an object of great curiosity. Before this time, mahogany had been used partially in the West Indies for ship-building, but this new discovery of its beauty soon brought it into general use for making furniture.

What is India Rubber or Caoutchouc?

An elastic, resinous substance, produced from a tree, growing abundantly at Cayenne, Quito, and other parts of South America; and also in some parts of the Indies. The tree which [108]produces it is large, straight, and about sixty feet high. There is, however, a small species found in Sumatra and Java, and some of the neighboring islands.

How is the Caoutchouc obtained from the Tree?

By making incisions in the trunk of the tree, from which the fluid resin issues in great abundance, appearing of a milky whiteness at first, but gradually becoming of a dark reddish color, soft and elastic to the touch.

To what use is this substance put?

The Indians make of it boots, shoes, bottles, flambeaux, and a species of cloth. Amongst us it is combined with sulphur, forming the vulcanized rubber of commerce, which is used for many purposes. A greater proportion of sulphur, produces vulcanite, a hard black substance, resembling jet.

What is Sponge?

A marine substance, found adhering to rocks and shells under the sea-water, or on the sides of rocks near the shore. Sponge was formerly imagined by some naturalists to be a vegetable production; by others, a mineral, or a collection of sea-mud, but it has since been discovered to be the fabric and habitation of a species of worm, or polypus.

What do you mean by Polypus?

A species of animals called Zoophytes, by which are meant beings having such an admixture of the characteristics of both plants and animals, as to render it difficult to decide to which division they properly belong. They are animal in substance, possessed indeed of a stomach, but without the other animal characteristics of blood-vessels, bones, or organs of sense; these creatures live chiefly in water, and are mostly incapable of motion: they increase by buds or excrescences from the parent zoophyte, and if cut off will grow again and multiply; each part becoming a perfect animal. Myriads of the different species of zoophytes reside in small cells of coral, sponge, &c., or in forms [109]like plants, and multiply in such numbers as to create rocks and whole islands in many seas, by their untiring industry. Polypus signifies having many feet, or roots; it is derived from the Greek.

Whence are the best and greatest number of Sponges brought?

From the Mediterranean, especially from Nicaria, an island near the coast of Asia: the collection of sponges forms, in some of these islands, the principal support of their inhabitants. They are procured by diving under water, an exercise in which both men, women, and children are skilled from their earliest years. The fine, small sponges are esteemed the best, and usually come from Constantinople; the larger and coarser sorts are brought from Tunis and Algiers, on the coast of Africa. Sponge is very useful in the arts, as well as for domestic purposes.

What is Coral?

A substance which, like sponge, was considered as a vegetable production, until about the year 1720, when a French gentleman of Marseilles commenced (and continued for thirty years,) a series of observations, and ascertained that the coral was a living animal of the Polypus tribe. The general name of zoophytes, or plant animals, has since been applied to them. These animals are furnished with minute glands, secreting a milky juice; this juice, when exuded from the animal, becomes fixed and hard.

Is this substance considered by naturalists as the habitation of the Insect?

Not merely as the habitation, but as a part of the animal itself, in the same manner that the shell of a snail or an oyster is of those animals, and without which they cannot long exist. [110]By means of this juice or secretion, the coral insects, at a vast but unknown depth below the surface of the sea, attach themselves to the points and ridges of rocks, which form the bottom of the ocean; upon which foundation the little architects labor, building up, by the aid of the above-mentioned secretion, pile upon pile of their rocky habitations, until at length the work rises above the sea, and is continued to such a height as to leave it almost dry, when the insects leave building on that part, and begin afresh in another direction under the water. Huge masses of rocky substances are thus raised by this wonderful little insect, capable of resisting the tremendous power of the ocean when agitated to the highest pitch by winds or tempests.

How do these Coral Rocks become Islands?

After the formation of this solid, rocky base, sea-shells, fragments of coral, and sea-sand, thrown up by each returning tide, are broken and mixed together by the action of the waves; these, in time, become a sort of stone, and thus raise the surface higher and higher; meanwhile, the ever-active surf continues to throw up the shells of marine animals and other substances, which fill up the crevices between the stones; the undisturbed sand on its surface offers to the seeds of trees and plants cast upon it by the waves, a soil upon which they rapidly grow and overshadow the dazzling whiteness of the new-formed land. Trunks of trees, washed into the sea by the rivers from other countries and islands, here find a resting-place, and with these come some small animals, chiefly of the lizard and insect tribe. Even before the trees form a wood, the sea-birds nestle among their branches, and the stray land-bird soon takes refuge in the bushes. At last, man arrives and builds his hut upon the fruitful soil formed by the corruption of the vegetation, and calls himself lord and master of this new creation.

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Where is the Coral Insect found?

In nearly all great seas; but particularly in the Mediterranean, where it produces Corallines of the most beautiful forms and colors: it is in the Pacific Ocean, however, where these tiny workmen are effecting those mighty changes, which exceed the most wonderful works of man.

What is that part of the Pacific called, where the Coral Rocks are most abundant?

The Coral Sea, from the number of coral reefs and sunken islands, with which it abounds; it includes a region of many miles in extent, the whole of which is studded with numberless reefs, rocks, islands, and columns of coral, continually joining and advancing towards each other. All navigators who have visited these seas, state that no charts or maps are of any service after a few years, owing to the number of fresh rocks and reefs which are continually rising to the surface. The wonderful instinct of these animals leads them to continue working without ceasing, until their labors are finished, or their lives extinct.

What are the names of the principal islands of Coral formation?

The New Hebrides, the Friendly Isles, the Navigator's Isles, the Society Islands, the Marquesas, the Gambier group, and others. These groups are separated from each other by channels or seas, wider than those which divide the individual islands which form the respective groups; but all these waters abound with shoals and minor islets, which point out the existence of a common base, and show that the work by which they will afterwards be united above the level of the sea is continually going forward.

What is a singular characteristic of the Coral Islands?

On all of them a plentiful supply of sweet and fresh water [112]may be obtained by digging three or four feet into the coral; and even within one yard of high-water mark such a supply is to be found. They are mostly covered with a deep rich soil, and well wooded with trees and evergreens of different kinds. These islands vary in extent, as well as in the degree of finish to which they have arrived; some of the largest being about 30 miles in diameter, and the smallest something less than a mile;—all of various shapes, and all formed of living coral.

Is Coral put to any use by man?

White Coral, which is nowhere so abundant as about the shores of Ceylon, and others of the neighboring Indian coasts, is employed as lime by the inhabitants of that part of the world, for building houses, &c., by burning it after the manner of our lime. This coral lies in vast banks, which are uncovered at low water. Coral, particularly the beautiful red sort, is likewise made into various ornaments, as necklaces, &c.

Of what is our Lime composed?

Of a useful earth, which absorbs moisture and carbonic acid, and exists as limestone, or in marble and chalk, which, when burnt, become lime: in its native state it is called carbonate of lime, and is burnt to disengage the carbonic acid; when made into a paste, with one part water and three parts lime,[13] and mixed with some other mineral or metallic substances, it forms plastic cements and mortars; and afterwards, imbibing carbonic acid from the atmosphere, it becomes again carbonate of lime, as hard as at first; and hence its use in building.

What do you mean by Carbon?

A simple substance, whose most common form is purified charcoal: it is, in fact, the base of charcoal, divested of all impurities; combined with oxygen, it forms carbonic acid gas, [113]formerly called fixed air. It is diffused through all animal and vegetable bodies; and may be obtained by exposing them to a red heat. In its pure, crystallized state, it constitutes the diamond, and as graphite, is used in making the so-called lead-pencils.[14]

What is Oxygen?

Air, mentioned in the first chapter of this work as the gaseous substance which composes the atmosphere, is formed by a mixture of two distinct elements, one called Nitrogen, or Azote, the other Oxygen. Oxygen is, therefore, an element or simple substance diffused generally through nature, and its different combinations are essential to animal life and combustion. It is, in fact, the most active agent in nature, and the principle of acidity and combustion. So wholesome and necessary is oxygen to life, that it is often called vital air.

What are the properties of Nitrogen or Azote?

Nitrogen is a substance also generally diffused through nature, and particularly in animal bodies, and causes great changes in those absorbing or exposed to it. This gas, combined with oxygen and hydrogen, produces neither light, heat, nor combustion, but serves to dilute the others: of itself, it is hurtful to animal life. Nitrogen makes the principal part of the salt we call nitre.

What is meant by Combustion?

The decomposition of bodies by the action of fire; the union of combustible bodies with the oxygen of the atmosphere. The greater access the air has to a burning body, the more rapid and complete is the process.

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Are all bodies equally combustible?

No; some are more so than others, and burn with a bright flame; as wood, dry vegetables, resins, oils, fats, &c.; others with difficulty, and without any sensible flame, as soot, coal, the ashes of plants, &c. There are bodies, also, which are incombustible—that is, incapable of taking fire, as some alkalies, earths, &c.

What is Caloric?

Caloric is that invisible agent which produces the sensation of heat. It exists in all bodies; it is a force we are ever in want of, and thus it is hid in everything around us, and penetrates all matter, however different may be its nature or properties.

What is meant by Gas?

All highly elastic fluids are called gases. Some are salutary, but many extremely noxious, especially such as those arising from the putrefaction of animal bodies; the burning of charcoal; corrupted air at the bottom of mines, cellars, &c. The inflammable gas, which lights our streets, churches, shops, &c., is procured chiefly from coal, burnt in furnaces for the purpose the gas being passed through metal pipes, conveyed underground to the places where the light is required: escaping at the orifice prepared for it, it is lighted when wanted, and burns with, a brilliant flame. This gas consists of hydrogen and carbon; and the oxygen of the air, combined with the hydrogen, causes light as long as hydrogen and oxygen exist and combine.

DIAMOND CUTTING AND POLISHING.

What is Hydrogen?

One of the most abundant principles in nature; one part of it, and eight of oxygen, form water. It is only met with in a [115]gaseous form; it is also very inflammable, and is the gas called the fire-damp, so often fatal to miners; it is the chief constituent of oils, fats, spirits, &c.; and is produced by the decomposition of water.

What is Chalk?

A white fossil substance, by some reckoned a stone, but of a friable kind, which cannot, therefore, be polished as marble; by others, more properly ranked among the earths. It is of two sorts, one a hard dry chalk, used for making lime; the other a soft, unctuous kind, used in manuring land, &c. Chalk always contains quantities of flint-stone, and the fossil remains of shells, coral, animal bones, marine plants, &c.; from which circumstance there can be no doubt that chalk is the deposited mud of a former ocean. The chemical name of chalk is carbonate of lime. It effervesces strongly with an acid.

Where is Chalk found?

In large beds or strata in the earth. Chalk, on account of its abundance in England, forms an important feature in the scenery and geology of that country; it causes the whiteness of its sea-cliffs. Scotland and Wales are entirely without chalk. The white chalk is found, with interruptions, over a space above eleven hundred miles long, extending from the north of Ireland, through England, France, Belgium, Germany, Poland, and Southern Russia, to the Crimea, with a breadth of more than eight hundred miles. The Island of Crete, now called Candia, situated in the Mediterranean, was formerly noted for its chalk. This substance is very useful in many of the arts and manufactures.

Where is the Crimea?

The peninsula of the Crimea is a part of Russia, lying on the Black Sea, by which it is bounded on the west and south.

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Are there any other kinds of this earth besides the common white chalk?

Yes; there are various kinds of chalk, distinguished by their different colors, as white, black, red, &c., found in various parts of the world, of great use to the painter, both in oil and water colors, and for drawing on paper, &c.

What is Marble?

A kind of stone remarkable for its hardness and firm grain, and for being susceptible of the finest polish. It is dug in great masses from pits or quarries; and is much used in ornamental buildings, and for statues, altars, tombs, chimney-pieces, &c. The word is derived from the French marbre, marble. Marble is supposed to be formed, deep within the bowels of the earth, from a loose and porous carbonate of lime, subjected to enormous heat and pressure.