1146 Wisconsin Academy of Sciences, Arts, and Letters. 
Rump, C. 1869 
Extractum Lupulini aetherenm. 
Arch. d. Pharm., 189, p. 232. [Jahresb. d. Pharm., 4, p. 39.] 
The extract of lupulin is directed to be prepared by macerating the 
fresh drug with ether, decanting and evaporating the ethereal solution to 
the consistence of a thin syrup. 
Squibb, E. 1869 
Report of the Committee on the Pharmacopoeia. 
Proc. A. Ph. A., 17, p. 298. 
The process of repercolation is stated to be well adopted to the prep¬ 
aration of the oleoresins and that it materially lessens their cost. 
Lefort, M. J. 1870 
Memoire sur les extraits sulfocarboniques, et sur leur emploi 
dans la preparation des hniles medicinales. 
Journ. de Pharm., 90, pp. 102-110. 
In considering the methods of medicating oils, the author proposes pre¬ 
paring the extract of the leaves of Coniium maculatum by exhausting the 
drug with carbon disulphide and subsequently removing the solvent by 
evaporation. 
Hager, 1871 
Zur Bereitung des Extractum Filicis aethereum. 
Pharm. Centralh., 12, p. 457. [Am. Journ. Pharm., 44, p. 
104.] 
It is stated that, if the rhizomes are dried over burned lime previous 
to extraction, and anhydrous ether (Sp. gr. below 0.723) used as the ex¬ 
tracting solvent, the oleoresin does not deposit on standing but remains 
perfectly clear. 
Maisch, J. M. 1872 
On the use of Petroleum-Benzine in Making Oleoresins. 
Am. Journ. Pharm. 44, p. 208. [Pharm. Journ., 31, p! 968; 
Proc. A. Ph. A., 21, p. 138; Year-Book of Pharm., 10, p. 328.] 
Petroleum benzine, sp. gr. 0.700, is stated to have been used to advantage 
in the preparation of the oleoresins of capsicum, cubeb and ginger, but, 
the author regards the use of this solvent in the place of ether as inad- 
missable until it has been proven that the proximate principles not ex¬ 
tracted by the benzine are medicinally inert. 
