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

  • Pharmaceutical Society of Great Britain. Museum
Date:
1878
Catalogue details

Licence: Public Domain Mark

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

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

    74/320 (page 62)
    C2 298. (12) Cinchona officinalis, continued. This variety (Chahuarguera, Pav.) is that which had the reputation of curing the Countess of Chinchon. It may be distinguished from other pale barks by its rusty brown aspect and minute brown dots or warts, which latter are often in the larger quills split like a coffee berry. Var.y. Bonplandiana,/. colorata, How. (Var. colorata, Pav.) a. Small quills. See P. J. [1], vol. xiii., p. 671, No. 2. b. Ditto. (East Indian Oroivn Baric.) Note.—Specimen a agrees in appearance with the colorada del Key of Kuiz and Pavon. Analysed by Howard, it yielded— Quinidine and uncrystallized quinine ... 1-57 Cinchonine 0-37 1-94 This variety of East Indian bark is easily recognised by its broad bright brown stripes, on a dark ground, caused by longitudinal cracks with thick edges, exposing the interior. It is of excellent quality, yielding 7-8 per cent, of alkaloids. See P. J. [2], vol. viii., p. 593, No. 4, 5. Var. 8. Bonplandiana, /. lute a, How. (H. 0. Grown bark, partly.) See Howard, Quinol. E. I. Plantat., p. 89 and pi. xi. a. Quills. P. J. [1], vol. viii., p. 671, No. 1. Note.—This appears to be the same as the amarilla del Key of R. et P. in the British Museum. It is the bark described under the heading of a in Per. Mat. Med., 3rd ed., vol. ii., pt. ii., p. 1639 ; and the C. lutea and amarilla del Key of Pavon. This bark is of a dark grey colour, with very numerous transverse cracks, interspersed among which are numer- ous small raised warts of the same colour as the bark. The Crown bark from Java somewhat resembles this bark in appearance. Var. e. crispa, How. (G. Grispa, Tafalla, of Howard's Quinologia.) a. Slender quills. P. J. [1], vol. xiv., p. 61, No. 9. Note.—This specimen is the silvery Crown bark of Pereira, and has been clearly identified with specimens taken by Seemann from C. offi- cinalis, a. Vera, Wedd. See Per. Mat. Med., vol. ii., pt. ii'., p. 1609, note 3. It is the true Loxa bark of Humboldt, and the cascarilla fina de Loxa of Kuiz and Pavon. It is also the quina, or crespilla carrasquena of old authors, and the quina fina de Loja of modern trade. P. J. [2], vol. viii., p. 16. Analysed by Howard, it yielded— Quinidine and uncrystallizable quinine ... 0-40 Cinchonine ... ... ... ... ... 0-03 0-43 East Indian bark obtained from this species yielded only 0-629 per cent, of alkaloids. See P. J. [2], vol. viii., p. 593. The specimen in this collection is remarkable for the thick edges of the numerous ramifying fissures, which form a sort of raised network on the bark. It closely resembles in size and colour the East Indian Uritusinga bark. (13) Cinchona ovata, Wedd. Var. a. vulgaris, Planch, a. Flat pieces. Note.—This specimen much resembles Calisaya in appearance, but is not so bitter, and has the remains of a silvery periderm.