129 
Leffman, Henry, discusses the use of nitron as a precipitant for 
nitric acid and nitrates and outlines the chemistry involved. — Oil, 
Paint and Drug Rep., 1906, v. 70, Dec. 3, p. 23. 
Soltsien. P., discusses the several reactions proposed for the identi- 
fication of nitric acid, the diphenylamine reaction, the brucine reac- 
tion. and the reduction of nitric acid to nitrous acid by means of 
zinc and testing this by means of potassium iodide and sulphuric 
acid. — Pharm. Ztg., Berl., 1906, v. 51. pp. 765-766. 
Caspari, Chas. E., reports one sample examined : Weak in strength 
and contained arsenic. — Proc. Missouri Pharm. Ass.. 1906. p. 100. 
ACIDUM NITROHYDROCHLORICUM. 
Eliel. Leo, savs that as the undiluted nitrohvdrochloric acid is 
* «/ *_ 
stable the dilution may be freshly prepared by adding enough 
distilled water to 2L2 gm. nitrohvdrochloric acid to bring the 
measure up to 100 c. c. — Proc. Indiana Pharm. Ass., 1906, p. 70. 
ACIDUM OLEICUM. 
Harries. C. ( Client. Ber., 1906, v. 39, pp. 3728-3732), presents some 
additional remarks on the constitution of oleic acid and the products 
derived from the action of ozone on oleic acid. — Biochem. Centralbh, 
Leipz., 1906-7, v. 5, p. 881. . 
Harries and Tiirck (Client. Ber., 1906, v. 39. pp. 3732-3738) pre- 
sent the results of further investigations on oleic acid ozonides. — 
Ibid., p. 882. 
The Pit. Brit. Committee of Reference in Pharmacy asserts that 
the Pli. Brit, tests for oleic acid exclude samples suitable for me- 
dicinal use. — Client. & Drug.. Bond., 1906. v. 69. p. 862. 
Dieterich. Karl, reports the examination of a total of 38 samples 
of oleic acid and records the results. The acid number varied from 
177.60 to 200.18 and the iodine number front 73.67 to 96.21. The 
specific gravity of the samples reported varied front 0.891 to 0.922 
at 15° C. — Helfenberger Annalen 1905, 1906, v. 18. pp. 69-70. 
Blome, W. H., reports a laboratory sample with a high congealing 
point and the presence of palmitic and stearic acids. — Proc. Michigan 
Pharm. Ass., 1906, p. 104. 
de Yevey, Artault, recommends oleic acid as a specific remedy 
* par excellence ” in hepatic colic and biliary lithiasis. — Bull, des sc. 
pharmacol. Paris, 1906. v. 13. pp. 297-298. 
ACIDUM PHOSPHORICUM. 
Schucht, Ludwig, makes a contribution on the titration of phos- 
phoric acid with an alkali and methyl orange as an indicator; also 
11667— Bull. 58—09 9 
