Contractions. - Camph. Cam.

Camphora officinarum. Nat. ord., Lauraceae:.

Synonym. - Laurus Camphora.

Fig. - Flora Horn., pl. 14.

Camphor. For. names: German, Kamfer; French, Camphre; Italian, Canfora; Spanish, Alcanfor.

Habitat. - China and Japan.

Part employed. - The concrete volatile oil, obtained from the wood, and imported in a crude state; purified by sublimation.

Characters. - White, translucent, tough, and crystalline, with a well-known penetrating odour. Taste pungent, followed by a sensation of cold. It floats on water, and sublimes entirely when heated.

N.B. - The strength of Solution of Camphor, used in the treatment of cholera, has varied. Hahnemann suggested 1 part of Camphor dissolved in 12 parts of spirit. Dr. Quin used 1 in 6, while Dr. Rubini employed a saturated solution containing nearly 50 per cent.

In ordering Camphor φ it will be necessary to specify the strength required; if not otherwise noted, the chemist will give the usual strength of 1 in 6.

Preparation. - Solution in rectified spirit.

Reference to Horn. Proving. - R. A. M. L., iv.

Proper forms for dispensing. - φ and upwards, Tincturn, Pilules, or Globules.