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these preparations with a time limit beyond which they should not 
be used. — Am. Druggist, N. Y., 1906, v. 49, p. 373. 
Bedall, C., asserts that fluid extracts have their shortcomings and 
are not suited for the making of other preparations by simple dilu- 
tion. — Apoth. Ztg., Berl., 1906, v. 21, p. 852. 
Lyons, A. B., points out that many details in connection with the 
assay processes for the alkaloid containing fluid extracts need modi- 
fication, and enumerates some of the changes which he would like to 
see adopted. — Proc. Am. Pharm. Ass.,' 1906, v. 54, pp. 440, 441. 
Gordin, H. M., reports experiments in the assay of fluid extracts 
by shaking the liquid out directly with a mixture of ether and petro- 
leum benzin, using sodium carbonate as the alkali. — Ibid., v. 54, 
p. 380. 
Puckner, AY. A., points out that in the valuation of fluid extracts 
the use of “ aliquot parts ” is uncalled for. — Ibid., v. 54, p. 441. 
Gordin, H. M., suggests a method for the assay of fluid extracts, 
using his special separatory funnels. — Am. J. Pharm., Phila., 1906, 
v. 78, p. 461. 
Feil, Joseph, discusses the percentage of alcohol remaining in fluid 
extracts, reports the results of experimental alcohol determinations, 
and concludes that the percentage of alcohol remaining in fluid ex- 
tracts is approximately the theoretical quantity and should not vary 
more than 2 per cent from this standard. — Proc. Am. Pharm. Ass., 
1906, v. 54, p. 433, 434. 
Caldwell, Paul, gives the approximate percentage of alcohol in 
the several fluid extracts of the U. S. P. VIII. — Drug. Circ. & Chem. 
Gaz., N. Y., 1906, v. 50, p. 434. 
Lyons, A. B., thinks it impossible to say definitely within 3 or 
5, and sometimes 10, per cent what is the amount of alcohol in the 
fluid extract. — Proc. Am. Pharm. Ass., 1906, v. 54, p. 435. 
Francis, John M., points out that there is no way, theoretically, 
of determining the percentage of alcohol in fluid extracts. He has 
conducted -a series of experiments extending over a long period of 
time, and the nearest he has been able to come with any degree of 
accuracy is about 2 per cent of a given figure. — Ibid., v. 54. p. 434. 
Lloyd, John Lfri, points out that half a century ago it was ex- 
pected that the whole line of vegetable extracts would be made of 
glycerin instead of alcohol and water, and in the fluid extracts then 
becoming popular it was freely asserted that glycerin would replace 
alcohol, sugar, and water. — Midi. Drug., Columbus, 1906, v. 7, p. 641. 
The quantitative analysis of glycerin in fluid extracts is of interest 
by reason of the possibility of falsification of these extracts through 
the addition of an excess of glycerin with the purpose of increasing 
the apparent content of extractive matter. Weiss, E. (Ztschr. d. 
