164 
An editorial expresses the belief that the official instructions for 
manufacturing this elixir are unnecessarily complicated. — Drug 
Topics, 1905, y. 20, p. 196. 
Lyons, A. B., expresses the belief that an assay process should be 
given, since comparatively few druggists will make the elixir them- 
selves, particularly by a formula so troublesome. — Proc. Am. Pharm. 
Ass., 1905, v. 53, p. 261. 
EMPLASTRUM PLUMBI. 
Francis, John M., asserts that there is really no reason why the 
soap should be dried, powdered, and then dissolved in water except 
that it enables one to use exact proportions and thus avoid possible 
waste. He believes that it will be equally economical and more 
satisfactory if the bar of castile soap is dissolved in water so as to 
produce a thin solution, lead acetate in solution then being added 
so long as a precipitate forms; as soon as this point is reached all 
of the soap is consumed and the operation can be carried out as 
directed by the pharmacopoeia. — Bull. Pharm.. Detroit, 1905, v. 19, 
pp. 452. 
An editorial expresses the fear that some difficulty will be experi- 
enced in freeing the plaster from water when operating on a small 
scale. — Drug Topics, 1905, v. 20, p. 197. 
EMTJLSA. 
Williams, John K., recommends the so-called continental or “ dry ” 
method for making emulsions, and prefers the use of a perfectly dry 
mortar in place of a bottle. In making emulsions of essential oils 
he proposes the addition of from 10 to 15 per cent of “ expressed 
oil.” — Proc. Connecticut Pharm. Ass., 1905, p. 52. 
Francis, John M., points out that only the best grades of tragacanth 
and of acacia are suitable for emulsions. He believes that the phar- 
macist who has had difficulties with emulsions will see them disap- 
pear when he improves the quality of his emulsifier. — Bull. Pharm., 
Detroit, 1905, v. 19, p. 452. 
Kebler and Hoover outline a scheme for the analysis of emulsions, 
and present the results of their own experiments in tabular form. — 
Proc. Am. Pharm. Ass., 1905, v. 53, pp. 35T-364. 
The Spanish Pharmacopoeia contains formulas for six emulsions, 
including: Emulsio camphorata, emulsio arabica, emulsio communis, 
emulsio olei jecoris aselli, emulsio olei jeeoris aselli hypophosphitici, 
emulsio gummi-resinse ammonia ci. 
EMULSUM OLEI MORRHTLE. 
Francis, John M., points out that there may be some doubt as to 
the practicability of the U. S. P. formula for emulsion of cod-liver 
