283 
FERRI PYROPHOSPHAS SOLTJBILIS. 
Caspari, Chas. E., reports two samples of soluble ferric pyrophos- 
phate examined : One U. S. P., one contained excess of iron. — Proc. 
Missouri Pharm. Ass., 1906. p. 101. 
Patch, E. L., found a sample of ferric pyrophosphate scale which 
was labeled “ U. S. P.” and contained 12.8 per cent iron, 9 per cent 
ammonia. — Proc. Am. Pharm. Ass., 1906, v. 54, p. 338. 
PERRUM. 
TESTS. 
Funk, W., outlines a method for separating iron from manganese 
by acetic acid. — Ztschr. f. analyt. Chem., 1906, v. 45, pp. 181-196. 
The same author discusses the separation of iron from manganese, 
nickel, cobalt, and zinc by means of ammonium formate. — Ibid., pp. 
489-504. 
He also discusses the separation of iron and manganese from nickel 
and cobalt by treating their sulphides with diluted acids. — Ibid., pp. 
562-570. 
Cowley, R. C., thinks the process introduced by Catford and him- 
self for determining ferric salts by reduction with H 2 S and subse- 
quent oxidation, the simplest of all the volumetric processes involving 
reduction.— Pharm. J., Lond., 1906, v. 23, p. 430. 
Brandt, L., presents a preliminary communication on the use of 
diphenylcarbohydrazid as an indicator in the titration of iron with 
bichromate. — Ztschr. f. anal. Chem. TCiesb., 1906, v. 45, pp. 95-99. 
Mouneyrat, A., describes a method for the detection of small quan- 
tities of iron; he uses an ammoniacal solution containing 62 gin. of 
ammonia per liter and finds it much more sensitive than sulpho- 
cyanicle. — Compt. rend. Soc. cle biol., Par., 1906, v. 60, p. 768. 
The same author presents a short study of the physical state of 
iron in solutions. — Ibid., p. 810. 
USES. 
Castaigne, J., (Presse med., Par., v. 14, Xo. 96) discusses the role 
of the liver with regard to the iron of the body, and states that when 
iron is administered to patients suffering from anaemia due to haemor- 
rhage. in aplastic anaemia and certain forms of tuberculosis, the effect 
upon the liver is perceptible before any is seen on the blood. — J. Am. 
M. Ass., 1907, v. 48, p. 458. 
Abderlialden, Emil, discusses the importance of iron for the animal 
organism and points out that iron combinations, even the complex, 
so-called organic salts, are not absorbed unchanged and the frequently 
