BIBLIOGRAPHY OF ANALYTICAL CHEMISTRY OF MANGANESE 29 



methods for the determination of total acid consumed, and of 

 manganese in "Weldon Mud." 



1874: 6. Willis, A. Estimation of Manganese in Spiegeleisen. 



Chem. News, 29, 150; Jsb. Chem., 1874, 987, 

 Comments on Piesse, 1874: 3. 



1875: I. BoussiNGAULT. Etudcs sur la transformation du fer en 

 acier par la cementation. 



Ann. chim. phys. (5), 5, 184; Dingl. pol. J., 224, 80; Jsb. Chem., 

 1877, 1061; Chem. Centrbl., 1877, 376. 



Separation from iron by basic acetate method, and precipitation by 

 hypochlorite. Determination of small quantities by means of 

 lead peroxide and titration with mercurous nitrate; also elec- 

 trolytic deposition. 



1875: la. Bolton, H. C. Index to the Literature of Manganese, 

 1596-1874. 



* Annals Lyceum Nat. Hist. N. Y., Nov., 1875. 



Compilation of journal literature on manganese and its compounds. 



1875: 2. Kern, S. Estimation of Manganese in Spiegeleisen, Iron, 

 and Steel. 



Chem. News, 32, 100; Jsb. Chem., 1875, 955; Ztschr. anal. Chem., 

 16, 505; J. Chem. Soc. (Lond.), 29, no; Chem.-techn. Rep., 14, 

 a, 278; Wagner's Jsb., 22, 19; Am. Chemist, 6, 192. 



Precipitation as manganous hj^droxide, reduction in hj^drogen, sepa- 

 ration of iron by magnet, and ignition to protosesquioxide. 



1875: 3. Lunge, G. Ueber die neusten Fortschritte in der Soda- 

 und Chlorkalk-Industrie in England. 



Dingl. pol. J., 215, 157; Pol. Centrbl., 1875, 853. 

 Determination in "Weldon Mud" by ferrous sulphate and perman- 

 ganate. 



1875: 4. Morrell, T. T. Note on the Estimation of Manganese in 

 Spiegeleisen. 



Am. Chemist, 6, 45; Jsb. Chem., 1875, 954. 



Separation from iron by the basic acetate method, precipitation by 



bromine, and colorimetric determination by the liberation of 



iodine. (See 1874: 2.) 



1875: 5. VoGEL, H. W. Ueber die Absorptionsspectren einiger 

 Salze der Metalle der Eisengruppe und Anwendung in der 

 Analyse. 



Ber., 8, 1533; Dingl. pol. J., 219, 533. 



Detection by means of absorption spectra of pennanganic acid. 



