Materia medica : a manual for the use of students / by Isambard Owen.
- Owen, Isambard, Sir.
- Date:
- 1883
Licence: Public Domain Mark
Credit: Materia medica : a manual for the use of students / by Isambard Owen. Source: Wellcome Collection.
28/226 page 14
![THIRD GROUP :—NINE DRUGS. The first is merely a colouring agent; the last is chiefly used as a vehicle. The remainder pos.sess more or less valuable medicinal j)roperties. Cautharis, Pepsin, and Cod-liver Oil are important drugs. Coccus. Cochineal. The female Cochineal Insect, Coccus Cacti, killed and dried. Mexico and TenerifFe. Contains Carmine. If collected during pregnancy, coated with a -srhite bloom, forming Silver Cochineal. Cantliaris. Cantharides. The Spanish Fly, Cantharis Vesicatoria, killed and dried. Hungary. About .4 p. c. of Cantliaridin, C5 H-i 2 Oo, the active principle. Cantharidin is soluble in Chloroform, Ether, and strong Acetic Acid. It sublimes unchane;ed. Castoreum. Castor. The preputial (sebaceous) foUicles of the Beaver, Castor Fiber, with their contained secretion. Hudson's Bay. The secretion contains a volatile oil. Mosclius. MusJc. The secretion of the preputial follicles of the Musk-deer, Moschus Moscliiferus, dried. Central Asia. Contains a volatile oil. Tel Bovintiin Purificatum. Ox-gall. An extract made with Rectified Spirit from fresh Ox-bile. Contains all the ingredients of the bile but the mucus. Soluble in water. Pepsin. The contents of the gastric glands of a pig, sheep, or calf, mixed with some epithelium, dried and powdered. Obtained by scraping the inner surface of the stomach (after washing) with a blunt knife, and drying the scrapings at a low temperature. Insolubl e in water or spirit. Contains Pepsin, the active principle of the Gastric Juice. The projjerties of Pepsin are destroyed by a heat over 120 deg. F. Cetaceum. Spermaceti. Nearly pure Cctin, CsoHgjOo, with a little oily matter, separated from the oil contained in a cavity in the head of the Sperm whale, Pliyseter Macrocephalus. Pacific and Indian Oceans. Crystalline. Fuses at 113 deg. F. Soluble in fis;e_d oils. Oleum Morrliuae. Cod-liver Oil. Oil extracted from the fresh liver of the Cod (Gadus Morrhua) at a heat not exceeding ISCF. North Sea. Pale yellow. If prepared at higher temperatures, or from livers that have been kept, it has a blown tint, deeper according to the degree of temperature and the stalenesa of the livers. The pale yellow is the only officinal oO, and is generally ]irel'erred in mecUcine. Contains SU p. c. of Olein, 15 p. c. of Margarin, some biliary jjrinciples, and traces of Iodine and Bromide. Other species of Gadus yield the same oil, but in less amount. I](https://iiif.wellcomecollection.org/image/b20399728_0028.jp2/full/800%2C/0/default.jpg)
