An introduction to pharmacognosy / by Smith Ely Jelliffe.

  • Jelliffe, Smith Ely, 1866-1945.
Date:
1904
Catalogue details

Licence: Public Domain Mark

Credit: An introduction to pharmacognosy / by Smith Ely Jelliffe. Source: Wellcome Collection.

Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.

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    included. These are: Peach, Cherry, Plum, Prune, Apricot, and Mandel gums. (3) Bassorin gums: These consist mainly of bassorin with some gum allied to arabin. These are Tragacanth, Kuter, Bassora, Cocos, Chagnal, and Moringa gums. (4) Bassorin and Cerasin gums: Mixture of these two gums. Gum of Cochlospermiim gossypium. THE ACACIA GUMS. The acacia gums are the Arabian, Senegal, Cape, North, East and West African, and East Indian varieties. The acacias form a family, as it were, of gums, many of which vary widely the one from the other. The discussion of the different species which yield the numerous varieties is beyond the scope of the present work.* The United States Pharmacopoeia recognizes the following: ACACIA. GUM ARABIC. A gummy exudation from Acacia Senegal, Willd. In roundish tears of various sizes, or broken into angular fragments, with a glass-like, sometimes iridescent frac- ture, opaque with numerous fissures, but transparent and nearly colorless in thin pieces, nearly inodorous, taste insipid, mucilaginous; insoluble in alcohol, but soluble in water, forming a thick, mucilaginous liquid. Acacia Senegal is a native of Egypt rather than of Arabia, growing in tlie fertile valleys of the Nile and of Sencgam])ia. Probably it is spread well into Central Africa. In and about the same regions there are a large number of species of Acacia, most of which yield gums. In the main, however, most of the gums of commerce are derived from A. Senegal. The gum is obtained from ]:»lants eight to forty years ♦ G. V<:-e: Etude sur Ics gommcs ditcs arabiques. Thdse Ecole de Phannacie dc Paris, 1888.