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tracts, and coloring agents. The danger of absorbing too much water 
may be overcome, if permissible, by dispensing the product in col- 
lapsible tubes. Owing to its stickiness and its odor, not to be masked 
by delicate perfumes, as little should be employed as will accomplish 
the result desired. Its “ tackiness ” is utilized in giving massage 
creams the necessary “ draw.”— Bull. Pharm., Detroit, 1906, v. 20, 
p. 204. 
^THER. 
The Fh. Brit. Committee of Reference in Pharmacy suggests that 
ether should distil at a temperature not under 34° C. — Chem. & Drug., 
Bond., 1906, v. 69, p. 862. 
Rosenthaler, L., discusses the rise in temperature which takes place 
on mixing ether and chloroform, and believes this rise to be due to 
chemical combination of the two substances and a rearrangement of 
the ether molecule. — J. d. Pharm. v. Elsass-Lothr., 1906, v. 33, pp. 
65, 66. 
Nicloux, Maurice, describes his method for the estimation of small 
quantities of ether and discusses the estimation of ether in various 
materials. — Compt. rend. Soc. de biol., Par., 1906, v. 61, pp. 577-579, 
606-609, 665-668, 728-731. 
Guiges, P., presents a rapid method of obtaining pure ether with- 
out serious loss ; this is not intended to be used with impure ether nor 
to replace purification. — J. de pharm. et de chim., Par., 1906, v. 24, 
p. 204. 
Weigel, G., calls attention to the requirements of the Ph. Ndl. 
IY, for “^Either ad Narcosin.” The main features of this require- 
ment are that the ether produces no reaction with Nessler’s reagent 
within fifteen minutes, and that it evaporates without residue or the 
production of any visible change in blue litmus paper. — Pharm. 
Zentralh., 1906, v. 47, p. 397. 
The Ph. Brit. Committee of Reference in Pharmacy reports on 
purified ether, and suggests that the aldehyde test should be with 
solid caustic potash. The test by odor requires more detailed in- 
structions. — Chem. & Drug., Bond., 1906, v. 69, p. 862. 
Patch, E. E., found a sample of ether, sold as 90 per cent, contained 
only 74 per cent. Two samples, of IT. S. P. strength, had an acid 
reaction and yielded residue, and one sample answering all other 
tests gave a brown residue. — Proc. Am. Pharm. Ass., 1906, v. 54, 
p. 337. 
Graham, Willard, reports that out of 5 samples of ether examined 
one showed the presence of an excessive amount of aldehyde. — Proc. 
Pennsylvania Pharm. Ass., 1906, p. 153. 
Baird, J. W., examined 3 samples in 1904 and found one genuine, 
two adulterated.— Proc. Massachusetts Pharm. Ass., 1906, p. 58. 
