Notes on Chinese materia medica / by Daniel Hanbury.

  • Hanbury, Daniel, 1825-1875.
Date:
1862
Catalogue details

Licence: Public Domain Mark

Credit: Notes on Chinese materia medica / by Daniel Hanbury. 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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    a broken and marking the fingers like chalk. It consists chiefly of fragments of a botryoidal crust, showing, when broken, a glistening, fibrous, radiating structure, sometimes divided into bands or layers slightly stained with oxide of iron. Mr. J. D. Perrins, of Worcester, who has obligingly examined the mineral for me, found its specific gravity (taken with precautions to deprive it of the air in its pores) to be 2.67. Mr. Perrins’s analysis gave its composition as follows:— Oxide of Zinc 72.64 Carbonic Acid 14.95 Water 10.63 Carbonate of Lead 1.78 100.00 From these results, which closely approximate to those obtained by Smith- son from the analysis of a similar mineral from Bleiberg, in Carinthia,* the following formula may be deduced:—Zn O, C 02 + 2 (Zn O, HO), with an admixture of Pb O, C 02. Zinc Bloom, according to Dana, occurs with ores of zinc and lead at Bleiberg and Raibel in Carinthia, where it has probably resulted from the decomposition of calamine. The Chinese mineral is from the southern province of Kwang-si. As found in the native drug-shops, it occurs chiefly in pieces of from one-quarter to one inch in length. Larger pieces, which are perfectly white, are worth 400 cash the tael, which equals about one shilling per ounce. SI® ft Meih-to-sang; Litharge (Oxide of Lead).—Pun-tsaou, fig. 8 ; Cleyer, Med. simpl.. No. 168. Wei-tan ; Red Oxide of Lead ; Red Lead. Tung-tan ; a dull red powder, consisting chiefly of Red Lead and Carbonate of Lime. Yuen-fun; Carbonate of Lead ; White Lead. Prepared at Canton and Soo-chow. A compound plaster, of which carbonate of lead and oil are the chief ingredients, is used by the Chinese. f§[|5] Tung-luh ; Carbonate of Copper (artificial).—It occurs in the form of small rectangular cakes of a pale, green colour, opaque and friable. FERRUGINOUS SUBSTANCES. Yen-sang; Magnetic Oxide of Iron. —A coarse, black, sand-like powder, strongly attracted by the magnet. Lin-tsze-shth; Magnetic Iron Ore.—Pun-tsaou, fig. 45. § Tsze-jen-lung; Per-oxide of Iron in cubic masses more or less broken.—It appears to have been obtained by calcining iron pyrites. Pun-tsaou, fig. 5. Tae-choo-sMh; Red Haematite ; Per-oxide of Iron. Pun-tsaou, fig. 46. It has the form of botryoidal concretions, with a scaly fracture, and ferruginous, metallic appearance. ^5 Yu-leang-sliih; Brown Clay Iron Ore.—Nodular concretions * Chemical Analysis of some Calamines, by James Smithson, Esq., F.K.S. Nicholsons