341 
LIQUOR CHLORI COMPOSITUS. 
Eberle, E. G., asserts that the compound solution of chlorine, made 
according to the U. S. P., will not assay 4 per cent. — Proc. Am. 
Pharm. Ass., 1906, v. 54, p. 450. 
Ehman, J. W., presents the work of Wm. P Shearer, who found it 
impossible, even under the most favorable conditions, to obtain com- 
pound solution of chlorine containing 0.4 per cent Cl as prepared by 
the U. S. P. formula. He suggests making the requirement 0.1 per 
cent Cl and diluting the stronger preparation to the necessary ex- 
tent. A quick assa}^ could be made by determining the amount of 
the preparation required to oxidize pure ferrous sulphate. Adding 
the necessary amount of water would then insure a weaker but uni- 
form product. — Am. J. Pharm., Phila., 1906, v. 78, p. 334. 
Arny, H. V., considers this preparation a distinct improvement 
over the chlorine water of the former pharmacopoeias, as far as ease 
in manufacture is concerned, and it should answer most of the thera- 
peutic requirements of its predecessor. — Am. J. Pharm., Phila., 1906, 
v. 78, p. 10. 
LIQUOR COCCINEUS N. F. 
| 
Caldwell, Paul, says of cochineal color : 
The potassium carbonate should not be added to the other ingredients and 
the whole then boiled, but it should be added in small portions from time to 
time as the solution is boiling. This will prevent the fixtures in the place tak- 
ing on a cochineal color. — Drug. Circ. & Chem. Gaz., N. Y., 1906, v. 50, p. 392. 
LIQUOR CRESOLIS COMPOSITUS. 
Francis, John M., is convinced that for the present pharmacists 
will find it almost impossible to obtain cresol which will meet the 
pharmacopceial requirements, because the demand has been so limited 
as not to warrant installing the necessary equipment for its produc- 
tion. — Bull. Pharm., Detroit, 1906, v. 20, p. 97. 
La Wall and Cook call attention to the fact that the formula for 
this solution as given in the U. S. P. VIII will not give a satisfac- 
tory product unless the solution be allowed to stand for about three 
weeks in order that complete saponification may take place. To 
overcome this objection they suggest first making a soap and then 
adding it to the cresol. — Am. J. Pharm., Phila., 1906, v. 78, p. 100. 
Boring, E. M., allows the mixture to stand for five weeks at a tem- 
perature in excess of room temperature. 
Wilbert, M. I ., says that the fact that the pharmacopoeia requires 
cresol to answer the test for absence of phenol makes the compound 
solution an expensive preparation. He thinks the Committee of 
Revision might have availed themselves of the more satisfactory for- 
