There are, perhaps, not sufficient data in existence to determine the true proportion of offal of all kinds to the beef of any given fat ox; but approximations have been made, which may serve the purpose until the matter is investigated by direct experiment, under various circumstances. The dead weight bears to the live weight a ratio varying between .571 and .605 to 1; and on applying one or the other multiplier to the cases of the live weight, a pretty correct approximation is reached. The tallow is supposed to be eight one-hundredths of the live weight; so that the multiplier is the decimal .08. The hide is supposed to be five one-hundredths of the live weight; so to obtain its weight, a multiplier, .05, is used. The other offals are supposed to be in a proportion of about one-fourth of the live weight; so that the multiplier, .28, is as near as can be proposed under existing experience. Beef is the staple animal food of this country, and it is used in various states--fresh, salted, smoked, roasted, and boiled. When intended to be eaten fresh, the _ribs_ will keep the best, and with care will keep five or six days in summer, and in winter ten days. The middle of the _loin_ is the next best, and the _rump_ the next. The _round_ will not keep long, unless it is salted. The _brisket_ is the worst, and will not keep more than three days in summer, and in winter a week. In regard to the power of the stomach to digest beef, that which is eaten boiled with salt only, is digested in two hours and forty-five minutes. Beef, fresh, lean, and rarely-roasted, and a beefsteak broiled, takes three hours to digest; that fresh, and dry-roasted, and boiled, eaten with mustard, is digested in three and a half hours. Lean fresh beef fried, requires four hours, and old hard salted beef boiled, does not digest in less than four and a quarter hours. Fresh beef-suet boiled takes five and a half hours.