349 
LIQUOR POTASSII ARSENITIS. 
Brown, Linwood A., reports on 33 samples of Fowlers solution. 
The strength of most of the samples was found to be between 90 and 
100 per cent of that of the U. S. P. VIII, the maximum variation 
being from 72.39 to 104.3 per cent. — Rep. North Dakota Agric. 
Exper. Sta., 1906, Part II, pp. 153-155. 
Maysse, P., weighs 1 gm. each of pure arsenous acid and pure car- 
bonate of potassium, introduces into an assay tube, mixes the two 
powders by agitation, adds 4 or 5 drops of distilled water, heats to 
solution, which requires only a minute or two, turns into a graduate 
and makes up* to 100 according to the Codex formula. He thus 
avoids the prolonged boiling of the Codex process and can prepare a 
very small quantity at a time. — Bull. des. sc. pharmacol, Par., 1906, 
v. 13 (Compt. rend, des soc. sav.), p. 106. 
Schindlemeiser, J., reports some experiments with the official and 
modifications of the official solution of potassium arsenite and ex- 
presses the belief that this solution is much more stable than is gen- 
erally thought. — Apotli. Ztg., Berl., 1906, v. 21, p. 902. 
Bedall, C., calls attention to the gradual change which takes place 
in the solution of potassium arsenite and suggests that pharmacists 
test this preparation repeatedly and that it be replaced by a fresh 
solution as soon as an appreciable change has taken place. — Apoth. 
Ztg., Berl., 1906, v. 21, p. 852. 
Lefeldt, Max., points out that the titration of the solution of 
potassium arsenite with iodine solution determines only the amount 
of arsenic trioxide and not the total arsenic. The total amount of 
arsenic should be determined or the presence of arsenate should be 
prohibited and a test added for this contamination. — Ber. d. pharm. 
Gesellsch., Berk, 1906, v. 16, p. 339. 
Rosenthaler points out that the solution of potassium arsenite is 
frequently taken exception to by revisors because of the decomposi- 
tion of the arsenous acid with formation of arsenic acid. He sug- 
gests the addition to the pharmacopoeia of a test that will demonstrate 
the total arsenic content of the solution. — Pharm. Zentralh., 1906, v. 
47, p. 850. 
Dunn, T. F. Joseph, reports the results of foui cases of pneumonia 
treated with Fowler's solution in private practice, all recovering, and 
six cases treated in the hospital of which but one ended fatally. — 
N. York M. J., 1906, v. 84, pp. 1084-1086. 
LIQUOR SODE CHLORINATE. 
Cowley, R. C., found that in the Ph. Brit, formula for liquor sodse 
chlorinatse the proportion of sodium carbonate might with advantage 
