HART, a stag, or male deer, in the sixth year. See CERVUS.
HART'S HORNS, in pharmacy, the whole horns of the common male deer, as separated from the head, without farther preparation.
The chemical analysis of hart's-horn is sufficiently known: it yields a water highly impregnated with a volatile salt, which is called spirit of hartshorn, with a fetid oil, and a volatile salt, by the common distillation in a retort.—The salt of hartshorn, when pure, differs in nothing from other purified volatile alkalies. See CHEMISTRY, n° 329—336; VOLATILE Alkali; and ALKALINE SPIRITS.