with the alkali salts of ortho-, pyro-, and meta -phosphoric acids. — 
Exp. Sta. Rec., v. 17, Xo. 11, p. 1037. 
Baxter and Griffin discuss the determination of phosphoric acid by 
means of ammonium molybdate. The conclusions arrived at include 
the assertion that it is possible to obtain ammonium phospho-molyb- 
d<ite constant in composition and in a state suitable for weighing, so 
that it may be used for the accurate estimation of phosphoric acid. 
The precipitate must be formed by pouring the phosphate into the 
molybdic acid. If the precipitation is performed in the reverse man- 
ner the composition of the precipitate varies considerably. — Am. 
Chem. J., 190.5, v. 34, pp. 204-217. 
Hirt and Steel outline a rapid volumetric method for the determina- 
tion of phosphoric acid. — Chem. Xews, Lond., 1905, v. 92, pp. 
113-114. 
Raschig, F. (Z. angew. Chem., 1905, v. 18, pp. 374-376), discusses 
the volumetric estimation of phosphoric acid. — Abstr. J. Soc. Chem. 
Ind., Lond., 1905, v. 24, p. 350. 
ACIDUM SALIC YLICUM. 
Herting, Otto, presents some remarks on the history, composition, 
and uses of salicylic acid. — Deut.-Amer. Apoth. Ztg., X. Y., 1905, 
v. 26, p. 113. 
Kebler, Lyman F., reports on salicylic acid containing phenol and 
other foreign impurities. 
Havenhill, L. D.. also reports one sample as containing phenol. — 
Proc. Am. Pharm. Ass., 1905, v. 53, p. 182. 
De Bruyn, Lobry, and Tijmstra (Rec. Trav. chim., v. 23, pp. 
385-393) discuss the mechanism of the synthesis of salicylic acid. — 
Abstr. J. Chem, Soc. Lond., 1905, v. 88, pt. 2, p. 209. 
Bigelow and Dubois read a paper (before the Am. Ass. Adv. Sc.) 
on the quantitative determination of salicylic acid, in which they 
attempt to define as exactly as possible the conditions to be followed 
in the estimation of salicylic acid; by extracting with solvents and 
comparing the color given with ferric chloride with that of solutions 
containing known amounts of salicylic acid. With tlxe proper pre- 
caution it was suggested that results could be obtained which are 
reasonabty correct. — Exp. Sta. Rec., v. 17, Xo. 6, p. 612. 
Harry and Mummery discuss the colorimetric estimation of sali- 
cylic acid in foodstuffs and outline a method for separating the 
salicylic acid in a state of purity, and determining the amount 
colorimetrically by the use of ferric chloride. — Analyst, London, 
1905, v. 30, pp. 124 - 127 . 
Spica (Gaz. chim. ital., v. 33, II. p. 482) outlines a method for de- 
tecting salicylic acid in wine, by converting it into picric acid and 
