Du Mez—The Galenical Oleoresins. 
1179 
Gluecksmann, G. 1911 
Ueber eine neue Identitaetsreaktion des Extractum Cube- 
barnm. 
Pbarm. Praxis, 1911, p. 98. [Apoth.-Ztg., 27, p. 334.] 
A test in which hydrochloric acid is used for producing a color reaction 
is described in detail. 
Parry, E. J. 1911 
Extract of male fern. 
Pharm. Journ. 87, p. 778. [Chem. & Drugg., 79, p. 860; 
Am. Journ. Pharm., 84, p. 136; Apoth-Ztg., 26, p. 1046.] 
The author reports on the examination of commercial extracts of male 
fern and finds that the greater part are undoubtedly adulterated with from 
30 to 60 per cent, of castor oil. The physical and chemical constants 
of the commercial samples and of genuine extracts are tabulated for com¬ 
parison. 
Pearson, W. A. 1911 
Report of the Committee on Adulterations. 
Proc. Penna. Pharm. Assoc., 34, p. 126. [Bull. A. Ph. A., 
6, p. 346.] 
The author reports that two lots of oleoresin of aspidium were rejected 
because they were not green in color. 
Rosendahl, H. V. 1911 
Fern rhizomes, yield of extract and relative activity of. 
Year-Book of Pharm., 48, p. 286. [Apoth.-Ztg., 26, p. 588; 
Svensk. farmac. Tidsk., 1911, p. 85.] 
The yield of ethereal extract obtained from various species of fern 
harvested during different months of the year was found to be as follows: 
May 
August 
October 
Per cent. 
Per cent. 
Per cent. 
Aspidium filix mas 
— 
12.5 
11.0 
Dryopteris spinulosa 
— 
17.0 
— 
Dryopteris dliatata 
10.0 
— 
— 
Pteris aquilina 
2.0 
— 
— 
Athyrium filix femina 
0.9 
— 
— 
Aspidium alpestris 
0.7 
— 
— 
Two grams of the extract of Dryopteris dilatata are stated to be thera¬ 
peutically equivalent to 8 to 10 grams of the extract of Aspidium filix mas 
or four grams of the extract of Dryopteris spinulosa. 
