78 BIBLIOGRAPHY OF ANALYTICAL CHEMISTRY OF MANGANESE 



1893: II. KosMAN, B. Zur Trennung von Eisen und Aluminium, 

 Mangan, Zink und Calcium. 



Stahl u. Eisen, 13, 431; Chem. Centrbl., 1893, b, 155; J. Chem. 

 Soc. (Lond.), 64, b, 600; Ztschr. anorg. Chem., 4, 397. 



Separation from iron by the acetate method and precipitation by- 

 Wolff bromine procedure. Comments on Riggs method. See 

 1892: 14, and 1S83: 22. 



1893: 12. Low, A. H. Technical Estimation of Manganese in Ores. 



J. Anal. Chem., 6, 663; Chem. Centrbl., 1893, a, 665; Chem. News, 

 67, 162; J. Iron Steel Inst., 1893, a, 418; Ztschr. anorg. Chem., 

 4, 320; Stahl u. Eisen, 13, 608; Monit. scientif., 43, 207; J. 

 Chem. Soc. (Lond.), 64, b, 438; School Mines Quart., 14, 256; 

 Eng. Min. J., 55, 124. 



Determination in ores by precipitation by means of bromine, solution 

 in oxalic acid, and titration with permanganate. 



1893: 13. Parry, J., and Morgan, J. J. The Analysis of Iron and 

 Steel. 



Chem. News, 67, 295; Ind. and Iron, 1893, 379; Stahl u. Eisen, 



13, 898; School Mines Quart., 15, 64. 

 Separation from iron by the acetate method, and precipitation by 



bromine; also colorimetric method and study of Williams 



method (1881: 18). 



1893: 14. RuDORFF, F. Quantitative Analyse durch Elektrolyse. 



Ztschr. angew. Chem., 1893, 452. 



Electrolytic determination, and separation from copper. 



1894: I. Christomanos, A. C. Ueber einen neuen Kohlensaurebes- 

 timmungs- Apparat . 



Ber., 27, 2748; J. Soc. Chem. Ind., 13, 1221. 



Modified apparatus for use with the Bunsen method for the deter- 

 mination of the peroxide (1853: i). 



1894: 2. Classen, A. Quantitative Analyse durch Elektrolyse. 



Ber., 27, 2075; J. Chem. Soc. (Lend.), 66, b, 480; Ztschr. anorg. 



Chem., 16, 269; Ztschr. Elektrochem., i, 290. 

 Determination by electrolysis. 



1894: 3. Fleitmann, T. Ueber die quantitative Bestimmung der 

 gewohnlichsten Beimischungen des im Handel vorkommenden 

 Reinnickels, oder Walznickels. 



Ztschr. anal. Chem., 33, 337. 

 Determination in commercial nickeL 



