Salt of hartshorn

Hartshorn Harts"horn` (-h[^o]rn`), n. 1. The horn or antler of the hart, or male red deer. [1913 Webster]

2. Spirits of hartshorn (see below); volatile salts. [1913 Webster]

{Hartshorn plantain} (Bot.), an annual species of plantain ({Plantago Coronopus}); -- called also {buck's-horn}. --Booth.

{Hartshorn shavings}, originally taken from the horns of harts, are now obtained chiefly by planing down the bones of calves. They afford a kind of jelly. --Hebert.

{Salt of hartshorn} (Chem.), an impure solid carbonate of ammonia, obtained by the destructive distillation of hartshorn, or any kind of bone; volatile salts. --Brande & C.

{Spirits of hartshorn} (Chem.), a solution of ammonia in water; -- so called because formerly obtained from hartshorn shavings by destructive distillation. Similar ammoniacal solutions from other sources have received the same name. [1913 Webster]