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.
PREPARATIONS
AQUA CAMPHORAE—CAMPHOR WATER
Tincture camphor 8, with alcohol 8 and purified talc 15; then with water to make 1000 filter.
Camphor water has this advantage over camphor in substance, that the latter is with difficulty dissolved by liquids of the stomach; but it is too feeble a preparation for use when a decided effect is desired; it is, however, an excellent vehicle for the administration of more active substances.
Dose.—Ad lib.
SPIRITUS CAMPHORAE—SPIRIT OF CAMPHOR
Made by dissolving gum camphor, 100, in alcohol, 800; filter and add alcohol to make 1000.