171 
FERRI LACTAS. 
Herting, Otto, does not appreciate the reason for dismissing lactate 
of iron from the pharmacopoeia. — Deut.-Amer. Apoth. Ztg., N. Y., 
v. 26, 1905, p. 71. 
FERRI SULPHAS EXSICCATUS. 
Cowley, E. C., asserts that it is quite impossible to prepare the 
dried sulphate of iron pure and free from oxide (quite soluble), un- 
less the sail is dried rapidly, and this method, too, is also somewhat 
objectionable because it liquefies the product and necessitates powder- 
ing for the final drying. — Brit. & Col., Druggist, 1905, v. 48, p. 382. 
FERRUM. 
SCALE PREPARATIONS. 
Cowley, E. C., takes exception to the way that scale preparations 
of iron have been treated in the U. S. P., VIII. He says: 
They are all purely pharmaceutical preparations, and are yet introduced 
into a pharmacopoeia without giving any instructions as to how they are to be 
prepared. — Brit. & Col. Drugg., Lond., 1905, v. 48, p. 382. 
Sayre, L. E., believes that the omission of processes and methods 
of manufacture of the scale salts of iron, from the pharmacopoeia, is 
a disadvantage. — Pharm. Era, N. Y., 1905, v. 34, p. 412. 
TESTS FOR IRON. 
Leather, J. TV, discusses the precise determination of small quanti- 
ties of iron by means of Lovibond’s tintometer. — J. Soc. Chem. Ind., 
Lond., 1905, v. 24, pp. 385-387. 
van Itallie, J., reports making some experiments to determine 
whether time and heat materially affect the accuracy of the method 
adopted by the German Pharmacopoeia for the estimation of iron. 
He finds that while heating the solution to 50° C. has no material 
influence on the end result, time did slightly influence the sum 
total. — Pharm. Ztg., Berlin, 1905, v. 50, p. 1009. 
Baxter and Frevert outline a method for the accurate estimation 
of ferrous iron, by titration with permanganate in the presence of 
hydrochloric acid and a manganous salt. — Am. Chem. J., 1905, v. 34, 
pp. 109-117. 
Dunlop, Thomas, points out that a previously unnoted color reac- 
tion with glycerin is a characteristic test for ferric nitrate in the 
official ferric solutions. — Pharm. J., Lond., 1905, v. 21, p. 247. 
ORGANIC IRON PREPARATIONS. 
Dunning, H. A. B., discusses the several classes of formulas pro- 
posed for the preparation of a solution of iron and manganese pep- 
