52 
with sodium sulphite and determining the chloride formed by titra- 
tion with silver nitrate, using a chromate as an indicator, or gravi- 
metrically, the sulphate being first removed with barium nitrate. — 
Abstr. J. Am. Chem. Soc., X. Y., 1905, v. 27, p. 1317. 
An abstract from the Chemiker Zeitung calls attention to the prop- 
erty of ceric salts, in solution, being decolorized by alkali nitrites 
without the evolution of gas. The reaction is said to be quantitative 
and to take place rapidly at ordinary temperatures. — Abstr. J. Soc. 
Chem. Ind., London, 1905, v. 24, p. 752. 
Barelt and Schonewald (Wochnschr. f. Brauerei, v. 21, p. 523) 
give figures to show the effect of different kinds of glass upon the 
results in the Kjeldahl determinations, and demonstrate that the 
effect is considerable. — Abstr. J. Am. Chem. Soc., N. Y., 1905, v. 27, 
p. 1348. 
Yeuburger, Albert, discusses the several methods now in use to 
utilize atmospheric nitrogen. He enumerates the production of 
nitrides, the production of ammonia and of ammonium compounds, 
the production of cyanides, and the production of the oxides of 
nitrogen. — Ztschr. f. angew. Chem., 1905, v. 18, pp. 1761-1766. 
4. BIOLOGIC REMEDIES. 
Arnold, L., contributes several papers on the use of the various 
animal substances — liver, gall, stomach, heart, blood, skin, marrow, 
bone, horns, hoofs, urine, excrement, saliva, sperm, and testicles— 
in medicine by the Arabians. — Bull, de Pharm. du Sud-Est, 1905, 
v. 10, pp. 348-351 and 508-517. 
Wain wright, J. W. (Med. Bee., July 29, 1905), contributes an 
exhaustive paper on the various glandular and other animal extracts 
which have lately come into use in therapeutics. — Abstr. J. Am. M. 
Ass., Chicago, 1905, v. 45, p. 493. 
Tada, J. (Jahrbuch d. Kinderheilkunde, Berlin, 1905, v. 41), con- 
tributes a paper on hypertrophy of the thymus. — Ibid., p. 817. 
RENNIX. 
Vanderkleed, Charles E., discourses on the lack of uniformity in 
the milk coagulating power of commercial rennin powder and the 
lack of uniformity in the method of testing. He outlines a method 
depending on the addition of varying quantities of a solution of 
rennin to a given quantity of milk and noting the time required to 
produce firm coagulation. — Proc. Penna. Pharm. Ass., 1905, p. 192. 
EXZYMES AND ENZYME ACTIOX. 
An editorial discusses “ The oxidizing ferments or oxydases ” and 
gives a number of references to the recent literature relating to the 
subject. — J. Am. M. Ass., Chicago, 1905, v. 45, p. 856. 
