Garsed, William, believes that his experiments go to show (1) 
that the quinine acid hydrochloride of commerce is practically an 
anhydrous salt and does not contain the three molecules of water 
given in the pharmacopceial formula. (2) That the pharmaco- 
pceial (Brit.) tests for the presence of neutral chloride should be 
more precise, both maximum and minimum figures being given, with 
particular instructions as to the indicator to be used. — Pharm. J., 
Lond., 1905, v. 21, p. 138. 
QUININE SULPHAS. 
Paul, B. H.. discusses the testing of quinine sulphate for cin- 
chonidine, based upon the solubility of quinine and cinchonidine in 
ether and the influence of the presence of the latter on the solubility 
of the former. — Year Book of Pharmacy, Lond., 1905, p. 142 (from 
Chem. & Drug., v. 65, p. 428). 
Patch, Edgar L.. reports finding an excess of other alkaloids in 
quinine sulphate, and quinine pills containing only 1.3 grains of 
quinine in place of 2 grains. — Proc. Am. Pharm. Ass., 1905, v. 53, 
p. 188 . 
RESINA. 
Levy, Paul, discusses the structural formula proposed for abietinic 
acid, the chief constituent of American rosin. He concludes that the 
formula proposed by Tschirch, Bagiev and others can not be correct 
and that the formula proposed by Trommsdorf. C 40 H 60 O 4 . is probably 
correct though he believes that it may correctly be represented by 
the more simple formula : C 20 H 30 O 2 . — Ztschr. f. angew. Chem.. 1905, 
v. 18, pp. 1738-1741. 
Tschirch, A., presents a study of the various phenomena inducing 
or tending to induce the flow of resins. — Arch. d. Pharm., 1905, 
v. 243, p. 81. 
RESINA PODOPHYLLI. 
Patch. Edgar L.. reports on five samples of resin of podophyllum 
which contained, respectively, 3. 5, 2.5, 5.5, and 2.5 per cent of ma- 
terial insoluble in alcohol. — Proc. Am. Pharm. Ass., 1905, v. 53, p. 188. 
The committee on adulteration of the A. W. D. A. quotes from a 
communication that podophyllin sold in a large way is frequently 
adulterated, and reference is made to a report on one sample which 
was found to contain between 30 and 40 per cent of aloin. Other 
samples have been found mixed with gamboge in various propor- 
tions. — Paint. Oil and Drug Bep.. 1905. Oct. 6. p. 15. 
The report of inspectors of pharmacies in Belgium asserts that 
resin of podophyllum is rarely pure ; certain samples were found to 
