Catalogue of the collections / compiled by E.M. Holmes.

Date:
1878
Catalogue details

Licence: Public Domain Mark

Credit: Catalogue of the collections / compiled by E.M. Holmes. Source: Wellcome Collection.

Provider: This material has been provided by Royal College of Physicians, London. The original may be consulted at Royal College of Physicians, London.

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    88 202. Acacia Verek, continued. g. Senegal gum. (Qomme Kuteera.) Note.—The variety du has duJleuve is the most esteemed in French com- merce. Specimens d to g are gums which are found mixed with Senegal gum. Gomme vermiculee is white, transparent internally, and occurs in cylindri- cal curved pieces. Gomme pelliculee is of a reddish yellow tint, and has a sort of vegetable epidermis on various parts of its surface. It is not entii-ely soluble. Gomme lignirode is a very distinct gum, in large quite opaque pieces of a dull yellowish brown colour. It dissolves in water, leaving a residue of gnawed wood. It is known in French commerce as marrons. According to Guibourt, some other gums, viz,, giMjn Kuteera (see Sterculia tragacantha), gomme verte, which is greenish at first but becomes yellowish white on exposure, and is difELcultly soluble, bdellium and gomme Gonake from Acacia Adansonii (A. vera, Willd.?), distinguished by its bitterness and dark colour, are also found in gum Senegal. Senegal gum is known from gum arabic by its clear interior, fewer cracks, and toughness. See Hist, des Drag., iii., p. 440. h. Sennaar gum. (^Sennari G%m^ Note.—This specimen is white, and looks like the best Turkey gum ; but among it may be seen pieces with a greenish tint. It jields a very glairy mucilage. It is the kind referred to by Hanbury in Pharmaco- grapMa, p. 210, note 3. It probably is identical also with the gomm£ verte of Guibourt. In English commerce it is known as Sennari gum. 203. Acacia species. a. MacuUa best gum arabic. So called by a native doctor at Bombay. (P. 145.) Note.—This is the specimen alluded to in Per. Mat. 3Ied., vol. ii., pt. ii., p. 335 (P. 145). It is probably of African origin ; for, according to Dr. Vaughan, African gum finds it way to Maculla. P. J. [1], vol. xii., p. 226. The specimen was presented to Dr. Pereira by Mr. Lawrence, Jan., 1834. b. East Indian gum. (P. 146.) Note.—This is called in India, Mocha and Barbary gum. c. Surat inferior gum arabic. (P. 147.) Note.—S-pecimens h and c are those alluded to in Per. Mat. Med., vol. ii., pt. ii., p. 335. d. Calcutta gum arabic. e. East Indian gum arabic. /. Bengal gum arabic. Note.—The first three specimens came from Bombay. Specimen e seems identical with the gomme lignirode of Guibourt. See gum Senegal and Feronia elephantum. g. Unnamed specimen, resembling East Indian gum. h. Ditto, resembling Cape gum. i. Purified gam. Presented by Mr. H. Picciotto. P. J. [1], vol. ix., p. 16. j. Insoluble gum. Note.—FoT adulteration of gum arabic, see P. J. [2], vol. v., p. 238.