1148 Wisconsin Academy of Sciences , Arts, and Letters. 
Wolff, L. 1877 
On the use of Petroleum Benzin in Pharmacy. 
Am. Journ. Pharm., 49, p. 1. 
It is stated that benzin does not extract any of the pungent resins from 
ginger, no cubebic acid from cubebs, no piperin from pepper, and no 
santonin or resin from wormseed. 
Cressler, C. H. 1878 
On Aspidium marginale, Swartz. 
Am. Journ. Pharm., 50, p. 290. 
The author prepared an oleoresin from what he thought was male fern, 
but later proved to be Aspidium marginale. According to his report, it 
proved effective in expelling tapeworm. 
Rohn, E. 1878 
Recovering Ether in the Preparation of the Ethereal 
Extracts. 
Schweiz. Worchenschr. f. Chem. u. Pharm., — , p. — [Year- 
Book Pharm., 16, p. 250.] 
The author recommends mixing the exhausted drug with water and 
then heating the mixture over a direct flame up to 60° C, when the ether 
remaining in the marc distills over. In this manner three kilos of ether 
are stated to have been recovered from eight to ten kilos of male fern used 
in the preparation of the extract. 
Kennedy, 1879 
Aspidium marginale. 
Am. Journ. Pharm., 51, p. 382. 
Favorable results in the expulsion of taenia by the administration of 
oleoresin of Aspidium marginale a**e reported. 
Thresh 1879 
Proximate Analysis of the Rhizome (Dried and Decorti¬ 
cated) of Zingiber Officinalis and Comparative Examination of 
Typical Specimens of Commercial Gingers. 
Pharm. Journ., 39, pp. 171 and 191. 
The yield of ether extract is given as follows: Jamaica ginger, 3.29 per 
sent., Cochin, 4.965 per cent., African, 8.065 per cent. It is further stated 
that twice as much ether is required to exhaust the African ginger as it 
is necessary in the ease of the other sorts (p. 191.) 
