The X. Y. Committee on Adulteration reports but 4 samples effi- 
cient out of a total of 46 examined. — Proc. Am. Pharm. Ass., 1906, 
v. 54, p. 338. 
Much and Romer (Berl. klin. Wchnschr., v. 43, Xo. 31) use per- 
oxide of hydrogen to sterilize milk completely: the peroxide is then 
eliminated by means of a catalase and the milk keeps indefinitely 
without the use of ice. — J. Am. M. Ass., 1906, v. 47, p. 1421. 
Adam, Paul, ( J. de pharm. et de chim.) points out that raw fresh 
milk in which there is no hydrogen dioxide when treated with 
hydrogen dioxide and guaicol turns a garnet red ; with paraphenylen- 
diamine it turns blue; and in the presence of aldehyde decolorizes 
methyleneblue. Decomposed or stale milk does not give the first 
two reactions, but decolorizes Schardinger's reagent, which consists 
of a concentrated alcoholic solution of methyleneblue, 5 c. c. ; for- 
maldehyde, 5 c. c. ; and distilled water, 190 c. c. — Am. Druggist, 
X. Y., 1906, v. 48, p. 197. 
Verisenat, E., (Bull. Soc-. Chim.) bases a very sensitive test for 
formaldehyde on the observation that when an aqueous solution or 
suspension of an albuminous substance is treated wivh hydrochloric 
acid containing a very slight percentage of nitrite, in the presence 
of a trace of formaldehyde, a faint violet pink to violet blue colora- 
tion ensues. The method is given in detail in the abstract in Drug. — - 
Circ. & Chem. Gaz., X. Y., 1906, v. 50, p. 125. 
Stone, B. H., is reported to have said that bichloride would not 
destroy tetanus germs, but that peroxide of hydrogen would. — J. Am. 
M. Ass., 1906, v. 47, p. 1677. 
Sachs-Muke (Munchen. med Wchnschr., v. 53, Xo. 34) states that 
neither peroxide of hydrogen nor bichloride will interfere with the 
examination of sputum. The peroxide of hydrogen breaks up the 
masses of sputum, which is then treated with sublimate. — Ibid ., v. 47, 
p. 1692. 
AQUA SEDATIVA N. E. 
Caldwell, Paul, asserts that if the spirit of camphor is vigorously 
shaken with the ammonia water before adding the sodium chloride, 
more camphor will be gotten into the preparation than if the official 
directions are followed. — Drug. Circ. & Chem. Gaz., 1906, X. Y, 
v. 50, p. 393. 
ARGEUTI UITRAS. 
Wells, Roger Clark, summarizes as follows: 
1. The chief sources of error in previous nephelometric work are pointed out. 
2. The use of ground glass standards of reference proved advantageous in 
studying the variation of opalescent precipitates with time. 3. For every con- 
centration a suitable medium and excess of precipitant is required. 4. Electro- 
lytes both augment the maximum opalescence to be precipitated from a solution 
