84 BIBLIOGRAPHY OF ANALYTICAL CHEMISTRY OF MANGANESE 



the excess of the latter. Discussion of Hampe, Weissmann, and 

 Vortmann articles. See 1883: 4, 1888: 20, and 1890: 16. 



1896: I. AucHY, G. Sources of Error in Volhard's and Similar 

 Methods of Determining Manganese in Steel. 



J. Am. Chem. Soc, 18, 498; Chem. Centrbl., 1896, b, 20S; Chem. 

 News, 74, 214, 248, and 262; J. Chem. Soc. (Lond.), 70, b, 627; 

 School Mines Quart., 18, 43; Eng. Min. J., 61, 11 1; J. Soc. Chem. 

 Ind., 15, 677; Analyst, 21, 335. 

 Sources of error in volumetric and colorimetric determinations. See 

 1879: 14, and 1S96: 15. 

 1896: 2. BuRGASS, R. Anwendung des Nitroso-/3-naphthols in 

 der anorganischen Analyse. 



Ztschr. angew. Chem., 1896, 601; J. Chem. Soc. (Lond.), 72, b, 163. 

 Separation from iron, copper, and cobalt by means of nitroso-^- 

 naphthol. 

 1896: 3. BiJTTGENBACH, F. Estimation de la valeur du manganese 

 dans les minerais de fer. 



Rev. univers. de mines, 32, 317; Berg- u. huttenm. Ztg., 55, 368; 

 Oester. Ztschr. Berg- u. Htittenw., 1896, 65: Wagner's Jsb., 42, 

 182; J. Chem. Soc. (Lond.), 74, b, 52. 

 Determination by assay tests on manganese ores. 



1896: 4. Dewey, F. P. The Actual Accuracy of Chemical Analysis. 

 Trans. Am. Inst. Min. Eng., 26, 370; J. Am. Chem. Soc, 18, 808. 

 Determination, and a comparison of the results obtained by various 

 chemists. 

 1896: 5. Dudley, C. B. Some Present Possibilities in the Analysis 

 of Iron and Steel. 



J. Am. Chem. Soc, 19, 104. 



Volumetric determination by precipitation with chlorate and titra- 

 tion with oxalic acid or ferrous sulphate solution in comparison 

 with gravimetric determination as phosphate. 

 1896: 6. Engels. Beitrage zur Elektroanalyse der Metalle der 

 Schwefelammoniumgruppe. 



Chem. Rtindschau, 1896, 5 and 22; Chem. Centrbl., 1897, a, 258; 

 Ztschr. anorg. Chem., 14, 439; J. Chem. Soc. (Lond.), 74, b, 192. 

 Separation from iron and nickel by electrolysis. 



1896: 7. GiORGis, G. Sul dosamento del manganese e del cromo 

 nei prodotti siderurgici. 



Gazz. chim. ital., 26, b, 528; Chem. Centrbl., 1897, a, 436; Bull, 

 soc. chim. (3), 18, 953; J. Iron Steel Inst., 1897, b, 498; J. Chem. 

 Soc. (Lond.), 72, b, 350. 

 Determination by addition of the solution to an excess of potassium 

 permanganate and titration • for the excess with a solution of 

 chromium sulphate. 



