hartshorn plantain

Webster's Dictionary (GCIDE)

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]