Useful Knowledge: Volume 2. Vegetables Or, a familiar account of the various productions of nature
Part 4
_The Fullers Teasel is distinguished from other plants of the same tribe by having its leaves connected at the base, the flower scales hooked, and the general calyx reflected or bent back._
The seeds of this plant are usually sown in strong rich land, about the commencement of spring. The flowers appear in July, and the blossoms begin to decay in the following month. Shortly after this the heads are cut off, and exposed daily to the sun until they are perfectly dried.
In the clothing counties of England the fuller's teasel is an article of considerable importance. The crooked scales accompanying the flowers are so hard and rough that the heads are employed for raising the nap of woollen cloths. For this purpose they are either set into flat boards like cards, or are fixed round the circumference of a large and broad wheel. The former are used with the hand; and the latter is turned round whilst the cloth is held against it.
54. _MADDER_ (Rubia tinctorum) _is a rough, trailing plant, that grows wild in several parts of the South of Europe, and is much cultivated in England and Holland on account of its roots, which are used by dyers and calico-printers._
The land best adapted for the cultivation of madder is a soft, sandy loam. When the roots have attained sufficient growth, they are taken up, carefully peeled, and dried in an airy shed. After this they are conveyed to a kiln, where they undergo a kind of management somewhat similar to that adopted in the drying of hops (260). The next process is to pulverize them, which is done by pounding or grinding; a secret that was long exclusively possessed by the Dutch.
Madder is extensively used in dyeing, not only on account of its yielding a fine red colour, but also as forming a first tint for several other shades. The madder used for dyeing cottons in the East Indies, is, in some respects, different from that cultivated in Europe. And, in the neighbourhood of Smyrna, and in the island of Cyprus, a kind of madder is grown which affords a peculiarly bright and beautiful colour.
This root is sometimes employed in medicine, in obstructions of the bowels, rickets, and a few other complaints. It tinges water a dull red colour, and spirit of wine a deep bright red. When eaten by animals, it stains even their most solid bones.
Cows are remarkably fond of the madder plant; and when they freely eat of it their milk becomes red, yet the cream which it affords makes a yellow butter,
55. _SANDAL WOOD, or YELLOW SAUNDERS, is a yellowish, odoriferous wood, which is imported from the East Indies in logs or short pieces, chiefly as a perfume, or for the manufacture of ornamental articles._
_The tree that produces it_ (Santalum album) _grows principally on the coast of Malabar, and in the island of Timor. It has somewhat the appearance of a large myrtle, with stiff branches, and smooth, shining, spear-shaped leaves, each about two inches long. The flowers grow in clusters, small and red, and are succeeded by berries about the size of peas._
When the sandal wood trees are cut down they are stripped of their bark; after which the wood is usually chopped into billets or small pieces, and buried in a dry place for about two months. During this time the ants eat the outer part of it, without penetrating to the heart, which is the sandal. The billets are then taken up, smoothed, and sorted; and the deeper the colour the higher is found the perfume.
In China this elegant wood, when cut into large planks, is sometimes made into coffins for the principal persons; and such coffins are said to resist the effects of air and moisture for many years. The Chinese also reduce the wood to powder, and, with the addition of water, convert it into a paste, which they apply to their bodies, their furniture, and about their houses, as a perfume. The powder of sandal wood is likewise employed as an incense in their idolatrous temples. Hence it is that a considerable trade in this wood exists between the East Indies and China.
Besides the logs, the chips and cuttings of the roots of sandal wood are an article of commerce. From these chips, and from the waste wood, an odoriferous oil is sometimes prepared, which is considered nearly equal in fragrance to oil of roses.
Sandal wood is at present seldom used in medicine; though, from its powerful qualities, it might probably be applied to many medicinal purposes with success. It has a bitterish aromatic taste, accompanied by a degree of pungency which is by no means unpleasant,
TETRAGYNIA.
56. _HOLLY_ (Ilex aquifolium) _is a small evergreen tree, with shining, irregular, and spinous leaves, and white flowers which grow in clusters round the branches, and are succeeded by small red berries._
In those parts of the country where hollies are very abundant they afford a cheerfulness to the scenery in winter which is extremely pleasing. It is on this account principally that they are planted in gardens and shrubberies. The barbarous taste of our ancestors was such that they frequently clipped them into the shape of birds, quadrupeds, and other fantastic representations of nature.
As a fence, holly is eminently serviceable. When formed into hedges, it admits of being cropped, and retains its verdure and beauty, without injury, even through the severest winters. Its growth is slow, and its duration longer than that of most other trees. The _wood_, which is hard and close-grained, is much used in veneering, and is frequently stained black, to imitate ebony. It is likewise advantageously used in making handles for knives, cogs for mill-wheels, and other articles. The _leaves_ in winter afford a grateful food to sheep and deer; and the _berries_ yield a subsistence, during this inclement season, to the feathered tribes. In some places, particularly in the island of Corsica, the inhabitants employ the seeds of holly for making a beverage somewhat similar, but much inferior, to coffee.
The _bark_ of the holly is smooth, and replete with a strong mucilaginous substance, from which the article called _bird-lime_ is made. For this purpose it is boiled ten or twelve hours; and, when the green rind is separated, it is covered up in a moist place, to stand for a fortnight. It is afterwards reduced to a tough paste, and washed in a running stream until no impurities are left. The next part of the process is to suffer it to ferment for four or five days; after which it is mixed, over the fire, with a third part of nut-oil (241), or some other oily fluid, and is thus rendered fit for use.
Bird-lime has a remarkably adhesive quality, particularly to feathers and other dry substances. It is, on this account, employed for the smearing of twigs to ensnare birds. In its elasticity and inflammable nature it has much resemblance to Indian rubber; and, if any means could be adopted to harden it, there is little doubt but it might be substituted for that article.
Holly deserves to be much more extensively cultivated than it is. Some years ago a person who purchased a holly wood in Yorkshire, sold the bird-lime prepared from the bark to a Dutch merchant, for nearly the whole sum of his original purchase.
Among the ancient Romans it was customary to send branches of holly, to their friends, with new years' gifts, as emblematical of good wishes. We decorate our houses and churches with it at Christmas, to give, as it has been observed, an air of spring in the depth of winter.
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CLASS V.--PENTANDRIA.
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MONOGYNIA.
57. _ALKANET is a dyeing drug, the bark of a root which produces a rough plant_ (Anchusa tinctoria), _with downy and spear-shaped leaves, and clusters of small purple or reddish flowers, the stamens of which are shorter than the corolla._
Though this plant is sometimes cultivated in England, by far the greater portion of the alkanet which we use is imported either from the Levant, or from the neighbourhood of Montpelier in France.
Alkanet imparts a fine deep red colour to all unctuous substances, and to spirits of wine; but it tinges water with a dull, brownish hue. Its chief use is for the colouring of oils, plasters, lip-salve, and other similar articles. It is likewise employed in compositions for rubbing, and giving colour to mahogany furniture. Wax tinged with alkanet, and applied to the surface of warm marble, stains it flesh colour, and sinks deep into the stone.
58. _The COWSLIP is a plant_ (Primula veris) _which grows in most meadows and pastures, and is too well known to require any description._
The _flowers_ of the cowslip, when picked and dried, are sometimes used as a balsamic tea. When boiled, with a certain proportion of water and sugar, and afterwards properly fermented, they may be made into a peculiarly pleasant wine.
The _roots_ have a fine odour; and, when immersed in ale or beer, are said to add considerably to the strength of the liquor. The _leaves_ are sometimes eaten as a pot-herb, and in salads; and both the leaves and flowers are an excellent food for silk-worms.
59. _BUCK-BEAN, or BOG-BEAN_ (Menyanthes trifoliata), _is a common plant in shallow ponds; and is distinguishable by its leaves growing in threes, and its pink and white flowers being shaggy on their inner surface._
There is no British plant the flowers of which are more beautiful than those of buck-bean; and nothing but the difficulty of propagating it in dry ground could prevent its having a place in every garden. The _leaves_ are intensely bitter, and are occasionally used in the Highlands of Scotland as a tea, to strengthen the stomach. The inhabitants of some parts of Sweden employ them in place of hops, to impart a bitter taste to ale; two ounces of them being considered equal in strength to a pound of hops. By some persons the leaves of buck-bean are smoked instead of tobacco; and different preparations of this plant have been found efficacious as a remedy against agues, and in scorbutic and scrofulous diseases, rheumatisms, and dropsy. There is an opinion that sheep, when compelled to eat of buck-bean, are cured of the rot. In Lapland it is said that the pounded roots, though very unpalatable, are sometimes converted into bread.
60. _SCAMMONY is a concrete or dried juice obtained from the roots of a climbing plant of the convolvulus tribe_ (Convolvulus scammonia, Fig. 7,) _which is cultivated in Asiatic Turkey, Syria, and Persia._
_This plant is known by having arrow-shaped leaves, notched in a particular manner at the base, and each flower-stalk bearing two or three large and somewhat purplish white flowers._
The roots of the scammony plant are thick, black on the surface, white within, and full of an acrid milky juice, which, in a concrete state, is frequently used in medicine. To obtain it, the earth, at a certain season of the year, is removed from the upper part of the roots whilst they are growing, and the tops are cut obliquely. The juice flows from the wound into a small vessel sunk into the earth, at the lower end of the gash, to receive it. But, as each root furnishes only a very small quantity, the produce of several roots is usually mixed together for the greater convenience of being exposed to the sun and dried. Still, however, the quantity, thus obtained, is sometimes insufficient to supply the demand. In this case an addition is made to it by the pressure of juice from the leaves and stalks.
The best scammony is imported from Aleppo, in light, spongy, friable pieces, of shining blackish grey colour, which have a faint, unpleasant smell, and a bitterish, pungent taste. It is sometimes adulterated with flour, and sometimes even with sand or earth.
In its medical effects, scammony, when administered alone, is an efficacious, though violent purgative. But if triturated or ground down with sugar, almonds, or gum-arabic, its operation becomes sufficiently mild and safe.
61. _JALAP is a dark-coloured root, which is usually imported, in transverse slices, from South America._
_The plant that produces it_ (Convolvulus jalapa, Fig. 8) _belongs to the convolvulus tribe, and has generally somewhat heart-shaped leaves, and flowers that are reddish on the outside, and dark purple or yellowish within._
The name of jalap is derived from Xalapa, a town in South America, situated betwixt Vera Cruz and Mexico, where the plant, of which it is the root, was originally discovered, and whence it has been imported, in great quantities, into Europe. The jalap plant is now cultivated in the botanical garden at Charlestown, and in several other parts of America. When recent, the root is large, whitish, and full of juice; but, when dried, the best pieces are compact, hard, weighty, and of dark colour, with black circular marks. Both in smell and taste it is very nauseous. It is frequently mixed with slices of bryony root; but these are easily distinguished by their paler colour and porous texture.
The only mode in which this root is of use is as a medicine; and it is administered in substance, in a tincture, and an extract. It has been advantageously employed in several disorders; but, as it is very powerful in its effects, great caution is necessary in the use of it, particularly with children.
62. _PERUVIAN BARK is the produce of a tree which grows in South America, and chiefly in Peru, whence its name has been derived._
_This tree_ (Cinchona officinalis), _in size and general appearance, somewhat resembles our cherry-tree. Its leaves are in pairs, oval, pointed, nerved, and smooth on the upper side; and the flowers hang in loose clusters, are fringed at the edges, and red in the inside_ (Fig. 10.)
Formerly this valuable medicine had the name of _Jesuit's bark_, from its having been first introduced into Europe by some persons of the religious order called Jesuits, that were settled in South America. They had been instructed in the use of it by the inhabitants of Peru, to whom it had long been known; and it continued, for many years, to be a lucrative article of commerce to them. For its officinal name of cinchona it was indebted to the lady of a Spanish Viceroy, the Countess del Cinchon, who, about 170 years ago, derived great benefit from taking it.
The tree from which it is obtained grows spontaneously, and in great abundance, in several of the mountainous forests of Quito and Peru. The proper time for cutting it is from September to November, the only season during which there is any considerable intermission from rain. The Indians, as soon as they have discovered a spot where the trees are in sufficient number, build a few huts for themselves, and one large hut for containing the bark, to preserve it from wet. They then go forth, each furnished with a large knife, and a bag which will hold about fifty pounds' weight of bark. Each tree occupies two men. They first cut or slice down the bark as far from the ground as they can reach. They then tie to the tree several sticks a little distance apart, and each about half a yard in length, to serve as a ladder by which they can ascend to the upper part, always slicing off the bark as far as they can reach, before they fix a new step. In this manner one of the two mounts to the top, whilst the man below collects what his companion cuts. To relieve each other, they ascend the different trees by turns; and they are generally able to fill their bags once in the course of the day. When they return to their huts, they spread out the bark to dry, and they are very careful to preserve it from wet, which would greatly injure it.
There are three sorts of bark in use: the _pale_, the _red_, and the _yellow_. Of these the two last have recently been discovered. The red is now very scarce, and is seldom brought into Europe. The pale bark is imported, from the Spanish Main, in large bundles, closely packed in goat or other skins. The yellow is in much larger pieces, and flatter and thicker than those of the pale bark.
We are informed, by some writers, that the Peruvians first learned the use of this bark from observing certain animals, affected with intermittent fevers, instinctively led to it. Others say that one of the inhabitants of Peru, having an ague, was cured by drinking the water of a pool into which some trees of this kind had accidentally fallen. On its first introduction into Europe, its use was opposed by many eminent physicians; and, for a long time afterwards, it was believed to be a very dangerous remedy. Its character, however, in process of time, became perfectly established, and it is now considered one of the most valuable medicines we possess.
Peruvian bark is used as a remedy in intermittent fevers or agues; and, by some persons, is prescribed in other kinds of fevers, in confluent small-pox, in gangrenous sore throat, and indeed in every species of gangrene. It is given in powder, as an extract, a spirituous tincture, and a decoction; but the most efficacious form is that of powder. In taste it is bitter and astringent, leaving an impression upon the palate which continues for some time afterwards; but its smell is rather agreeable than otherwise.
63. _COFFEE is the seed of an evergreen shrub which is cultivated in hot climates, and is chiefly imported from Arabia and the East and West Indies._
_This shrub_ (Coffea Arabica, Fig. 9) _is from fifteen to twenty feet in height. The leaves are four or five inches long, and two inches broad, smooth, green, and glossy on the upper surface; and the flowers, which grow in bunches at the base of the leaves, are white and sweet-scented. The berries or fruit are of a somewhat oval shape, about the size of a cherry, and of dark red colour, when ripe. Each of these contains two cells, and each cell has a single seed, which is the coffee as we see it before it undergoes the process of roasting._
Coffee is an article of only late introduction. To the Greeks and Romans it was wholly unknown. Its use appears to have originated in Ethiopia; and, in 1554, it is stated to have been first introduced into Constantinople, whence it was gradually adopted in the western parts of Europe. In 1652 Mr. Daniel Edwards, a Turkey merchant, brought with him to England a Greek servant, whose name was Pasqua, and who understood the methods of roasting coffee, and making it into a beverage. This man was the first who publicly sold coffee in this country; and he kept a house for that purpose in George Yard, Lombard Street. At Paris, coffee was nearly unknown until the arrival of the Turkish ambassador, Solomon Aga, in 1669; about three years after which the first coffee-house is said to have been established in that city. The coffee shrub was originally planted in Jamaica in 1732.
Great attention is paid to the culture of coffee in Arabia. The trees are raised from seed sown in nurseries, and afterwards planted out, in moist and shady situations, on sloping grounds, or at the foot of mountains. Care is taken to conduct little rills of water to the roots of the trees, which at certain seasons require to be constantly surrounded with moisture. As soon as the fruit is nearly ripe, the water is turned off, lest the fruit should be rendered too succulent. In places much exposed to the south, the trees are planted in rows, and are shaded from the otherwise too intense heat of the sun, by a branching kind of poplar tree. When the fruit has attained its maturity, cloths are placed under the trees, and, upon these, the labourers shake it down. They afterwards spread the berries on mats, and expose them to the sun to dry. The husk is then broken off by large and heavy rollers of wood or iron. When the coffee has been thus cleared of its husk, it is again dried in the sun, and lastly winnowed with a large fan, for the purpose of clearing it from the pieces of husks with which it is intermingled. A pound of coffee is generally more than the produce of one tree; but a tree in great vigour will produce three or four pounds.
The best coffee is imported from Mocha, a town on the eastern bank of the Red Sea. This, which in Europe is called _Mocha_ and _Turkey coffee_, bears a higher price than any which our colonists are able to raise; owing, as it is supposed, to the difference of climate and soil in which it is grown. It is packed in large bales, each containing a number of smaller bales; and, when good, it appears fresh, and of a greenish olive colour. The coffee next in esteem to this is grown in Java and the East Indies, and that of lowest price in the West Indies. When stowed in ships with rum, pepper, or other articles, it is said that coffee contracts a rank and unpleasant flavour, and this has been assigned as a reason of the inferiority of such as is imported from our own plantations.
The quantity of coffee annually supplied by Arabia is supposed to be upwards of fourteen millions of pounds. Before the commencement of the French Revolution the island of St. Domingo alone exported more than seventy millions of pounds per annum.
Almost all the Mahometans drink coffee at least twice a day, very hot, and without sugar. The excellence of coffee depends, in a great measure, on the skill and attention that are exercised in the roasting of it. If it be too little roasted, it is devoid of flavour; and if too much, it becomes acrid, and has a disagreeable burnt taste. In England the operation of roasting is usually performed in a cylindrical tin box, perforated with numerous holes, and fixed upon a spit which runs lengthwise through the centre, and is turned by a jack.
In a medical view, coffee is said to be of use in assisting digestion, promoting the natural secretions, and preventing or removing a disposition to drowsiness. It has been found highly beneficial in relieving some cases of severe head-ach.
The outer pulpy part of the berry, and the inner membrane, which immediately invests the seeds, are used by the Arabians, and of these the former is much esteemed, and constitutes what is called _coffee à la sultane_.
64. _STRAMONIUM, or THORN-APPLE_ (Datura stramonium), _is an annual plant, with thick round stalks, somewhat triangular leaves, jagged or toothed at the edges, large white and funnel-shaped flowers, and seed vessels large and beset with spines._
Although originally a native of America, stramonium is now a frequent weed on dunghills, and in cultivated ground of our own country; and, when once introduced into a garden, it is difficult to be eradicated. Its smell is exceedingly unpleasant, and its qualities are so pernicious, when taken internally, as to occasion giddiness, torpor, and sometimes even death. The seeds are particularly injurious. Notwithstanding this, the inspissated or dried juice of the leaves has been considered a valuable remedy in epileptic and other convulsive disorders. An ointment prepared from them affords relief in external inflammations; and smoking the dried leaves has lately been recommended in asthmatic complaints.
The soporiferous and intoxicating qualities of stramonium are well known in eastern countries, and have often occasioned the plant to be employed for very improper uses.
65. _TOBACCO, in the state that we see it, is a narcotic drug formed from the dried leaves of an annual plant_ (Nicotiana tabacum, Fig. 11) _that is principally cultivated in North America,_
_The stalk of the tobacco plant is erect, strong, round, and hardy. The leaves are large, oblong, pointed, clammy, and of pale green colour. The flowers, which terminate the stem and branches in loose clusters, are of reddish colour, and funnel shaped, with a long hairy tube; and the seed vessel is oval, and divided into two cells, that contain many rounded seeds._