Du Mez—The Galenical Oleoresins. 
1183 
__ 1913 
Male fern extract. 
Southall Bros., & Barclay, Lab. Rep., 21, p. 14. 
The analytical data obtained in the examination of two commercial 
samples of the extract of male fern are given. 
Bohrisch, P. 1913 
Ueber Extractum Filicis. 
Pharm. Ztg., 58, p. 601. [Chem. Abs. 8, p. 206.] 
A comprehensive review of the constituents and the methods of evaluat¬ 
ing the extract of male fern is given. 
Four samples of commercial extracts in bulk were examined for density 
and crude filicin content. The findings for density were 0.9888, 0.9842, 
0.9836 and 1.0109; for crude filicin 14.85; 15.42, 16.00 and 24.00 per cent. 
The same tests for five samples of the extract in capsules showed: density, 
0.9824, not determined, 1.0135, 1.0255 and 0.9910; crude filicin, 15.02, 
23.42, 26.77, 27.72 and 14.45 per cent. 
Dohme and Engelhardt 1913 
Cubebs. 
Oil, Paint and Drug Rep., 83, p. 55. 
The quantities of oleoresin obtained from cubebs ranged between 16 
and 22 per cent. 
DuMez, A. G. 1913 
The physical and chemical properties of the oleoresin of As- 
pidium with respect to the detection of adulterations. 
Philippine Journ. of Sc., 8, Sec. B., p. 523. 
The methods of adulterating the oleoresin are discussed in detail The 
physical and chemical constants of samples prepared in the laboratory and 
those obtained from various commercial sources are presented with the 
idea of indicating to what extent they may be relied upon in detecting 
a deteriorated or adulterated product. 
Engelhardt, H. 1913 
Purity of chemicals and drugs. 
Journ. A. Ph. A., 2, p. 163. 
Four samples of black pepper are reported to have yielded 10.6, 12.5, 
9.2 and 11 per cent., respectively, of oleoresin; six samples of capsicum, 
13.1, 41.8, 15.26, 15.8, 11.3 and 11 per cent; cubebs from 18 to 25 per 
cent; Jamaica ginger from 2.81 to 5.24 per cent; lupulin, eight samples 
out of twelve, less than 60 per cent; three samples of parsley seed. 14.7, 
11.4 and 13.04 per cent. (pp. 164 and 165.) 
