Du Mez—The Galenical Oleoresins. 
1169 
is prepared with alcohol. It is stated that manufacturers have long since 
seen the folly of employing an expensive solvent like ether, and the 
adoption of acetone for this purpose is a recognition of commercial phar¬ 
maceutical advances, (p. 214.) 
Dieterich 1905 
Extracta spissa et sicca. 
Helfenberger Ann., 1905, p. 159. 
A sample of the ethereal extract of cubeb, D. A. IV, showed a “mois¬ 
ture” content of 55.91 per cent, and an ash content of 0.87 per cent. 
(p. 160.) 
A sample of extract of male fern D. A. IV, gave a “moisture” content 
of 5.06 per cent., an ash content of 0.46 per cent, and yielded 23.22 per 
cent, of crude filicin (p. 161.) 
Dieterich 1905 
Rhizoma Zingiberis. 
Helfenberger Ann., 1905, p. 131. 
The following percentages of extract were obtained by exhausting ginger 
with different solvents, evaporating the latter and drying the residue at 
100°C: 
1) One part alcohol, 8 parts water — 7.86 per cent. 
2) Sixty-eight per cent, alcohol — 4.88 per cent. 
3) Ninety per cent, alcohol — 2.79 per cent. 
Dieterich 1905 
Rhizoma Filicis. 
Helfenberger Ann., 1905, p. 130. 
During the year, a number of lots of male fern rhizomes were examined. 
The air-dried rhizomes yielded 9.94 to 10.60 per cent, of ethereal extract. 
The rhizomes when dried at 100°C yilded as high as 11.20 per cent, to 
the same solvent. 
Francis, J. M. 1905 
The New Pharmacopoeia: A Detailed Commentary on the 
Eighth Revision of the U. S. P. 
Bull, of Pharm., 19, p. 317. [Am. Journ. Pharm., 78, p. 412.] 
Under acetone, it is stated that oleoresins prepared with this solvent will 
separate in two layers on standing owing to the fact that this ketone pos¬ 
sesses in a measure the combined solvent properties of both alcohol and 
ether. 
74—S. A. L. 
