63 
Rupp, E., discusses the amplification of iodometry and its appli- 
cation to the estimation of water soluble peroxide combinations, the 
estimation of ferrous salts, and the determination of iodides in the 
presence of chlorine and bromine. — Pharm. Zentralh., 1906, v. 47, pp. 
870-872. 
16. TESTS. 
HALOGENS. 
Jannasch and Zimmermann outline a method for the separation of 
iodine from bromine and chlorine by the use of hydrogen dioxide. — 
Ber. d. deutsch. chem. Gesellsch. Berl., 1906, v. 39, pp. 196, 197. 
Vaubel and Scheurer present a method for the quantitative deter- 
mination of halogens in organic combinations. — Chem. Ztg. Cothen, 
1906, v. 30, pp. 167, 168. 
v. Wyss, H., discusses the behavior of the bromide salts in the ani- 
mal and human organism, the elimination of bromides in general, 
the elimination of bromides by epileptics, the antagonism between 
chlorides and bromides, and the accumulation of bromides in the or- 
ganism. — Arch. f. exper. Path. u. Pharmakol. Leipz., 1906, v. 55, pp. 
263-287. 
Rupp and Horn discuss the volumetric determination of iodides 
in the presence of chlorides and bromides. — Arch. d. Pliarm., Berl., 
1906, v. 244, pp. 405-411. 
Bottger, W., discusses the determination of chlorides in the pres- 
ence of complex cyanides. — Pharm. Zentralh., 1906, v. 47, pp. 873-874. 
METALS. 
Skrabal and Neustadel (Ztschr. f. anal. Chem.) suggest a modifica- 
tion of the well-known chromate precipitation method for separating 
barium from strontium and calcium. — Pharm. Zentralh., 1906, v. 47, 
p. 318. 
Kahn, S. K., discusses the detection of minute traces of copper and 
iron by the use of stearic acid. — Proc. Am. Pharm. Ass., 1906, v. 54, 
pp. 402-405. 
Moser, L., discusses the volumetric estimation of lead as ioclate by 
decomposing the solution of soluble salt of lead with an excess of 
a solution of potassium iodate. — Chem. Ztg., Cothen, 1906, v. 30, 
p. 9. 
Rupp, E., asserts that the method proposed by Moser is not new. — 
Ibid., p. 37. 
Rupp and Horn elaborate on a previously published method for 
the determination of ferrous salts by titrating with ferrous hypoio- 
dite. — Arch. d. Pharm., Berl., 1906, v. 244, pp. 571-575. 
