186 
HYDRARGYRUM AMMONIATUM. 
Allen reports finding samples of ammoniated mercury which 
failed to comply with the requirements of the official standard. — 
Proc. Michigan Pharm. Ass., 1905, p. 80. 
HYDRASTIS. 
Henkel and Klugh (U. S. Dept. Agr., Bureau of Plant Industry, 
Bui. 51) give notes on the identification, distribution, and cultiva- 
tion of golden seal, also some reference to the methods of collecting 
and preparing the rhizomes for the market. It is shown that under 
artificial shade the plant can be cultivated without much difficulty. — 
Exper. Stat. Rec., 1905, v. 16, p. 747. 
Henkel, Alice, presents a study of the nature, uses, and experiments 
with the cultivation of golden seal. — Western Drugg., Chicago, 1905, 
v. 16, p. 747. 
True, Rodney H., asserts that golden seal culture is now a prac- 
ticable garden proposition. — Proc. Am. Pharm. Ass., 1905, v. 53, 
p. 275. 
A similar assertion is made by the Bureau of Plant Industry. — 
Ann. Rep. U. S. Dept. Agric., 1905, p. 147. 
Lloyd, John Uri, reports an experiment in hydrastis culture and 
asserts that Hydrastis canadensis is a very easy crop to raise by trans- 
planting the entire root. — Proc. Am. Pharm. Ass., 1905, v. 53, pp. 
307-310. 
Warren, Xortham, discusses the propagation and the growing of 
hydrastis. Appended to the article are the names of a number of 
people interested in the cultivation of this plant. — Bull. Phar., 
Detroit, 1905, v. 19, p. 323. 
Caeser and Loretz assert that the experiments made in the cultiva- 
tion of hydrastis have as yet not sufficiently progressed to be of com- 
mercial importance. The available supply of the drug is practically 
exhausted, and fresh supplies are limited.- — Schweiz. Wchnschr. f. 
Chem. u. Pharm., 1905, v. 43, p. 621. 
Hood, C. S., presents some reference to the history and the origin 
of hydrastis. — West. Drugg., 1905, v. 27, p. 773. 
Lloyd, John Uri, asserts that every drug, native to the soil, that 
resembles this rhizome, either in fiber or in color, has been known to 
be mixed with it. He also enumerates a number of root drugs that 
have been found admixed with or substituted for hydrastis. — Pharm. 
Rev., 1905, v. 23, p. 330. 
Vanderkleed. Charles E., finds that nine assays varied from 1.80 
to 3.45 per cent of hydrastine. Two samples of the powdered drug 
assayed below 2.25 per cent of hydrastine. — Proc. Penna. Pharm. Ass., 
1905, p. 56. 
