The British pharmacopoeia / published under the direction of the General Council of Medical Education and Registration of the United Kingdom, pursuant to the Acts XXI & XXII Victoria, cap. XC, 1858 and XXV and XXVI Victoria, cap. XCI, 1862.

Date:: 1898-

Credit: The British pharmacopoeia / published under the direction of the General Council of Medical Education and Registration of the United Kingdom, pursuant to the Acts XXI & XXII Victoria, cap. XC, 1858 and XXV and XXVI Victoria, cap. XCI, 1862. Source: Wellcome Collection.

30/84 page 10

$Characters.—The root-bark occurs in short more or less quilled pieces having a thickness of from one-tenth to one- fifth of an inch (two to five millimetres) and a width of not more than one and a half inches (thirty-seven millimetres). It is covered with a soft, greyish-buff, strongly furrowed and reticulated periderm, having a thickness of from one-twenty- fifth to one-twelfth of an inch (one to two millimetres), and being easily separable from the subjacent yellowish-white tissues. This layer must be removed before the root-bark is powdered for use. The inner liber portion exhibits, on transverse section, narrow pale brown indistinct phloem rays. The inner surface of the bark is somewhat granular and of a pale brown colour. It has a short mealy fracture, a faint odour, and a mucilaginous bitter acrid taste. Dose, in powder.—3 to 10 grains, as a tonic ; as an emetic, 30 to 60 grains. India. Easteen Colonies. OAMBOGIA I2STDICA. Indian Gamboge. The gum-resin obtained from Garcinia Morella, Dcsrouss. [Wight, Icones, plate 102]. Characters and Tests.—Indian Gamboge must have all the important characters, and must respond to the tests, of Gamboge as described on page 64 of the British Pharma- copoeia 1898. It must be free from particles of wood, leaves, and similar extraneous matters. Dose.—^ to 2 grains. India. Eastern Colonies. CATECHU NIGRUM. Black Catechu. An extract prepared from the wood of Acacia Catechu, Willd. [Bentl. and Trim., Med. PI. vol. ii. plate 95]. Characters and Tests.—In irregular masses of a dark$