And so on, the name always taking its date from the time of shearing. Broken-mouthed ewes are called crones in Suffolk and Norfolk; kroks, or crocks, in Scotland; and drapes in Lincolnshire. In Scotland, ewes which are neither with lamb, nor giving milk, are said to be eild, or yield.
CHAPTER II.
WOOL.
(24.) Wool-Bearing Animals.—In most dictionaries wool is defined as the fleece of sheep, as if, in fact they were the only animals which yield it, than which nothing can be more erroneous; since we are assured by the ablest naturalists, that almost every animal, from the butterfly up to man, possesses more or less of this covering, and that some indeed rival the sheep in the quantity they bear.
Though wool is possessed in considerable quantity by carnivorous animals, especially bears, yet the herbivorous quadrupeds, never to mention the sheep, are principally noticed for its growth, and for affording a commodity which becomes an article of profit in the hands of some tribes. Heriot, in his travels through Canada, remarks, that "the savage women manufacture thread of the wool of the buffalo, and weave it into cloth. Most parts of the body are invested with a dusky wool, which is of a quality extremely fine—is much valued—and can with great facility be used in manufactures. The quantity usually contained on one skin is about eight pounds."
So far from the sheep being invariably a wool-bearing creature, it would appear as liable to be entirely destitute of it as some other animals; for in Tartary, the eastern parts of India, China, and some parts of Africa, a hair of varying quality forms their sole covering; and Sir Joseph Banks imported three from Spain, which were smooth, sleek, and as short-haired as a horse.
(25.) Structure of the Skin.—The skin is composed of three coats, or layers; the outermost, the cuticle or scarf-skin, is a thin delicate membrane, devoid of feeling, and of a scaly texture, pierced by innumerable small holes, for the passage of the hairs, and perspiration, and covering the next, or mucous coat, so named from its pulpy appearance. In this resides the colouring matter, which imparts its peculiar tints to the hair, and which can only be satisfactorily demonstrated in the dark races. The existence of this coat has been by some denied; but it is probable that, though present in all, it can only be exhibited in such as have depth of tint, to admit of the display. It is here that sensation principally resides; the nerves, or rather their terminations, ramifying minutely in its substance, at which they have arrived by piercing the third tunic, or true skin, a dense firm elastic membrane, in which the roots of the hairs are imbedded, and from which, in fact, they take their origin.
(26.) Sebaceous Follicles.—The skin is studded over by small glands, or what, in anatomical language, would be called sebaceous follicles, which vary in number in different breeds, and different parts of the body, being most numerous on the breast and shoulders, and secreting a peculiar unctuous semi-solid matter, which, as we shall immediately see, possesses alkaline properties.
(27.) Connection of the hair with the skin—Yolk.—A hair implanted in the skin may be compared to a plant growing in a flower-pot which has been sunk in the earth, as the root of the hair does not rise directly from the true skin, but from a little cup extending from it to the cuticle, and receiving nourishment from surrounding vessels. After coming to the surface of these tunics it has, in the sheep, yet another, and, in some respects, remarkable covering to pierce, one which has occupied the attention of the most distinguished chemists, and given rise to a good deal of disputation on the subject of salving—we allude to the Yolk. It is supposed by many to be the inspissated secretion of the sebaceous follicles, and receives its name from its adhesiveness and colour. It is most plentiful on fine-woolled sheep, those of the south possessing more than those of the north of our island, while merinos possess most of all; so that there is apparently some connection between a fine fleece, and a good supply of this matter. According to the analysis of M. Vauquelin, it consists principally of a soapy matter, with a basis of potash; a small quantity of carbonate of potash; a minute quantity of acetate of potash; lime in an unknown state of combination; and an atom of muriate of potash. It owes its odour to a small quantity of animal oil, and is in every respect a true soap, which would permit the sheep to be completely washed in a stream, but for the existence in the fleece of an uncombined fatty matter, which remains attached to the wool, and renders it rather glutinous.