Warm, M. J., presents a comparative study of the oxymethylan- 
thraquinone content of the fluid extract of cascara and of fluid extract 
of frangula. The latter he found to contain from 7.55 to 7.60 gm. 
per kilo; the former, on the other hand, was found to contain from 
5.90 to 5.95 gm. per kilo. — J. de Pharm. et de Chim., Paris, 1905, v. 
22, p. 12. 
Vanderkleed, Charles E., outlines a method of assay for emodin- 
yielding drugs. — Proc. Penna. Pharm. Ass., 1905, p. 193. 
Panchaud, Adelb., has examined a number of samples of frangula 
and finds that young bark is invariably richer in emodin than the 
older bark. The emodin content in the several samples varied from 
1.0 to 3.8 per cent in selected young bark. The determinations were 
made according to the method devised by Tschirch. — Schweiz. 
Wchnschr. f. Chem. u. Phar., 1905, v. 43, p. 518. 
GALLA. 
Hartwich, C., presents a review of the literature relating to the 
uses and the composition of the galls of a number of trees and plants, 
including juniper, oak, rhus, eucalyptus, rhododendron, and sage. 
The article is illustrated by figures of the several galls that are dis- 
cussed. — Arch. d. Pharm., Berlin, 1905, v. 243, p. 584. 
GAMBIR. 
Nixon, C. F., in discussing the relative value of catechu and 
gambir, says: “Gambir, the old discarded pale catechu, has been 
added, with a requirement of 70 per cent soluble in alcohol. The 
leading importing houses are unable to furnish it even of this poor 
quality,” and finally asserts that “ Catechu of the market is richer 
in tannin than is gambir.” — Apothecary, Boston, 1905, v. 17, p. 774. 
Greshoff, M. (Pharm. Weekblad, v. 42, p. 699), reports a series of 
experiments on the assay of gambir. — Abstr. in Pharm. J., Bond., 
1905, v. 21, p. 657. 
GELATINTJM. 
Klose, Curt, outlines a method for preparing a solution of gelatin, 
1-8, that will remain liquid at ordinary temperatures. He directs 
that the solution be heated in a sterilizing apparatus for six hours, 
filtered, allowed to cool, and then reheated for one hour each day 
on three successive days. The resulting solution will keep well and 
may be dispensed to advantage, flavored with syrup of orange made 
slightly acid with citric acid. — Pharm. Ztg., Berlin, 1905, v. 50, p. 813. 
Mann and Herzberg (Therap. d. Gegenw., v. 46, No. 11) discuss 
the use of fluid gelatin in diarrhoea. — Abstr. in J. Am. M. Ass., 1906, 
v. 46, p. 166. 
