176 
Lanclmann, G. (Mitteilung. a. d. Grenzgebieten d. Med. u. Chir., 
Jena, v. 14, pp. 682-693) discusses the action of gelatin on the 
coagulability of the blood. — Reference from Ind. Med., 1905, p. 844. 
GELSEMIUM. 
Eberle, E. G., enumerates gelsemium as being one of the medicinal 
plants found in Texas. — Proc. Am. Pharm. Ass., 1905, v. 53, p. 304. 
Lloyd, John Uri, in drug study No. 9, points out that while gel- 
semium is not usually adulterated, it is likely to be of. inferior qual- 
ity. — Pharm. Rev., 1905, v. 23, p. 329. 
Sayre, L. E., presents a comparative study of the fresh and dry 
root and rhizome. He points out that the difference in alkaloidal 
content may be accounted for in bark relationship, all of the alkaloid 
being found in the bark. Sayre believes it probable that the alkaloid 
gelsemine is composed of two alkaloids, and that they may be sepa- 
rated by their difference in solubility in dilute acids. — Proc. Am. 
Pharm. Ass., 1905, v. 53, pp. 282-285. 
Havenhill, L. D., reports finding a sample of gelsemium contain- 
ing 15.13 per cent of ash, 7.5 per cent of moisture ; two-thirds of the 
ash was sand. A reasonable limit for ash would be 3 per cent. — Proc. 
Kansas Pharm. Ass., 1905, p. 91. 
Vanderkleed, Charles E., reports seven assays of gelsemium vary- 
ing from 0.244 to 0.66 per cent of gelsemine. Two of the samples 
were below an average standard (4 per cent) for good drug. — Proc. 
Penna. Pharm. Ass., 1905, p. 56. 
GENTIANA. 
Gadd and Gadd assert that adulterations of gentian are most read- 
ily detected by means of the microscope, but that good evidence of 
quality is also furnished by the yield of extract, which should be 
about 40 per cent. — -Pharm. J., Lond., 1905, v. 21, p. 439. 
The revisors of Vienna pharmacies report finding gentian, particu- 
larly powdered gentian, contaminated with the root of Gentiana 
asclepiadea. — Pharm. Prax., 1905, v. 4, p. 38. 
Tanret, Georges, contributes several papers on the active princi- 
ples and the constituents of gentian, one on gentiopicrin and another 
on gentiine. — Compt.-rend. Acad. d. sc. Par., v. 141, 1905, pp. 207- 
209, 263-264. 
Alcock, F. H., suggests that the diversity of opinion about the per- 
centage of total solids in the compound tincture of gentian is really 
due to the variation in the gentian itself, and points out that a careful 
selection of gentian is needed if concordant results are to be ob- 
tained. — Pharm. J., Lond., 1905, v. 21, p. 128. 
Beringer, George M., gives detailed directions for the preparation 
of a fluid extract of gentian by the infusion process. — Pharm. Era, 
N. Y., 1905, v. 34, p. 30. 
