The Book of Household Management by Mrs. Beeton

destined to preserve a constant equilibrium in the number of animated beings that hold their existence on the surface of the earth. To man they are immediately useful in various ways. Some of their bodies afford him food, their skin shoes, and their fleece clothes. Some of them unite with him in participating the dangers of combat with an enemy, and others assist him in the chase, in exterminating wilder sorts, or banishing them from the haunts of civilization. Many, indeed, are injurious to him; but most of them, in some shape or other, he turns to his service. Of these there is none he has made more subservient to his purposes than the common ox, of which there is scarcely a part that he has not been able to convert into some useful purpose. Of the horns he makes drinking-vessels, knife-handles, combs, and boxes; and when they are softened by means of boiling water, he fashions them into transparent plates for lanterns. This invention is ascribed to King Alfred, who is said to have been the first to use them to preserve his candle time-measures from the wind. Glue is made of the cartilages, gristles, and the finer pieces of the parings and cuttings of the hides. Their bone is a cheap substitute for ivory. The thinnest of the calf-skins are manufactured into vellum. Their blood is made the basis of Prussian blue, and saddlers use a fine sort of thread prepared from their sinews. The hair is used in various valuable manufactures; the suet, fat, and tallow, are moulded into candles; and the milk and cream of the cow yield butter and cheese. Thus is every part of this animal valuable to man, who has spared no pains to bring it to the highest state of perfection. [Illustration: SHORT-HORN COW.] [Illustration: SHORT-HORN BULL.]