CAMPHORA—CAMPHOR—GUM CAMPHOR
Derivation.—Camphor is obtained from a tree known as Laurel Camphor. The branches are cut and boiled in water and the camphor rises to the top in the form of gum.
Habitat.—Japan, China and Sunda Islands.
Properties.—White translucent masses, of a tough consistence and a crystalline structure, readily pulverizable in the presence of a little alcohol ether or chloroform; having a penetrating characteristic odor, and a pungent aromatic taste. Very sparingly soluble in water, but readily soluble in alcohol, ether, chloroform, carbon disulphide, petroleum, benzine and in fixed and volatile oils. On exposure to the air, it evaporates more or less rapidly at ordinary temperatures, and when moderately heated, it sublimes without leaving a residue.
Dose.—Horses, 1 to 3 drs.; cattle, 2 to 4 drs.; sheep and pigs, 15 grs. to 1 dr.; dogs, 3 to 30 grs.