84 
Beal, J. H., in discussing the new pharmacopoeia says: 
The use of 33 per cent of lime water in the formula for mucilage of acacia 
is an improvement, in that it corrects the common acid condition of old gum 
and aids in its keeping qualities. — Midland Druggist, 1905. v. 6, p. 1035. 
Pinchbeck, G. (Pharm. J., Lond., v. 20, p. 620), suggests that muci- 
lage of acacia should be officially directed to be heated to 100° C. to 
eliminate the oxidase. Tabulated results of some experiments made 
are included. — Year Book Pharm., Lond., 1905, p. 225. 
White, Edmund, records some experiments that were undertaken 
to determine the comparative viscosity of the simple and mixed muci- 
lages. — Pharm. J. Lond., 1905, v. 21, p. 133. 
Devalmont (Oesterr. Zeitschr. f. Pharm., 1905) asserts that because 
of the contained oxydase, acacia is incompatible with eserine, adrena- 
lin, and morphine. Continued heating to 100° C. destroys this ferment 
and the resulting substance is no longer incompatible with the above 
alkaloids. — Deut.-Amer. Apoth. Ztg., N. Y., 1905, v. 26, p. 142. 
Just’s Botanischer Jahresbericht (for 1905, v. 33, . part 3, p, 786) 
contains a number of additional references on gums of the acacia 
type. 
ACETANILIDUM. 
Herting, Otto, outlines a method for determining the melting point 
of this substance. — Deut.-Amer. Apoth. Ztg., N. Y., 1905, v. 26, p. 72. 
Riedel’s Berichte compares the requirements of the Ph. Germ., IY, 
with the findings of independent investigators. After some addi- 
tional experimentation, on the part of the chemists in Riedel’s labo- 
ratory, it was decided that the figures given by Beilstein are more 
nearly correct, and that at a barometric pressure of 760 mm.' the boil- 
ing point of acetanilide is 302.45° C., or about 7.45° C. higher than 
the boiling point required by either the Ph. Germ., IY, or the U. S. 
P., YIII. — Riedel’s Berichte, Berlin, 1905, p. 40. 
Raikow and Kiilumow point out that acetanilide does not react with 
Yessler’s solution at ordinary temperatures, and even on heating only 
a partial production of unstable mercuric iodide results. — Oesterr. 
Chem. Ztg., 1905, v. 8, p. 448. 
Rosenthaler, L., points out that with Millon’s reagent acetanilide 
gives a yellowish green color that gradually changes to orange, and 
finally to dark brownish red. In contradistinction to phenacetin, the 
liquid remains clear. (See also acetphenetidin.)— Abstract (from 
Suedd. Apoth. Ztg.) Deut.-Amer. Apoth. Ztg., 1905, v. 26, p. 86. 
Fulmer (Ann. d. Chim. Analyt., 1905) suggests the following test 
for acetanilide in phenacetin : 
One decigramme of the suspected substance is boiled for one minute with 1 cc. 
of concentrated hydrochloric acid ; the mixture is then diluted with 10 cc. of 
water and filtered. To the filtrate are added three drops of a 3 per cent solu- 
