68 BIBLIOGRAPHY OF ANALYTICAL CHEMISTRY OF MANGANESE 



1890: II, Lunge, G. Das Gasvolumeter, ein Apparat zur volligen 

 Ersparung aller Reductionrechnungen bri Ablesungen von 

 Gasvolumen. 



Ztschr. angew. Chem., 1890, 139; Ber., 23, 440; Ztschr. anaL 



Chem., 29, 589. 

 A modification of the nitrometer. (See 1890: 9.) 



1890: 12. McKenna, a. G. The Precipitation of Manganese as 

 Ammonium Manganous Phosphate. 



Tech. Quart., 3, 333; Chem. News, 63, 184; J. Anal. Chem., 5, 

 140; Iron, 37, 469; Jsb. Chem., 1891, 2479; J. Chem. Soc. (Lond.) 

 61, 1 138; J. Iron Steel Inst., 1891, b, 326; School Mines Quart., 



• 12, 262; Berg- u. hiittenm. Ztg.,50, 186; Eng. Min. J., 51, 635; J. 

 Soc. Chem. Ind., 10, 387; Chem.-techn. Rep., 31, c, 268. 



A study of Gibbs method (1867: 3). Comments on Blair method. 

 (1887: 3.) 



1890: 13. Myhlertz, F. G. Method for the Rapid Determination 

 of Manganese in Slags, Ores, etc. 



J. Anal. Chem., 4, 267; Chem. Centrbl., 1890, b, 607; Ztschr. anal. 

 Chem., 32, 368; Chem. Ztg., 14, 251, Rep.; Wagner's Jsb., 36, 

 337; J- Chem. Soc. (Lond.), 60, 366; School Mines Quart., 12, 61; 

 Berg- u. hiittenm. Ztg., 49, 400; Oester. Ztschr. Berg- u. Htittenw., 

 39, 13; J. Iron Steel Inst., 1891, a, 444; Techn.-chem. Jahrb., 



13, 75- 



Fusion with carbonate and nitrate, reduction of manganate with 

 alcohol, solution of precipitate in ferrous sulphate solution, and 

 titration of excess of latter. 



1890: 14. RiBAN, J. Sur le dosage et la separation du zinc en 

 presence du fer et du manganese. 



C. R., no, 1 1 96; Bull. soc. chim. (3), 4, 116; Jsb. Chem., 1890, 



2449; Chem. Centrbl., 1890, b, 120. 

 Separation from zinc by precipitation with sulphuretted hydrogen 



in feebly acid solution. 



1890: 15. Sellik, B. Technische Analyse des Wolframits. 



Chem. Ztg., 13, 1474; Ztschr. anal. Chem., 29, 105. 

 Determination in wolfrainite. 



1890: 16. VoRTMANN, G. Eine neue Methode zur maassanalytische 

 Bestimmung des Mangans, 



Ber., 23, 2801; Jsb. Chem., 1890, 2441; Chem. Centrbl., 1890, b, 

 676; Ztschr. angew. Chem., 1890, 715; Chem. Ztg., 14, 289, Rep.; 

 J. Chem. Soc. (Lond.), 58, 1470; Chem. News, 62, 251; Bull, 

 soc. chim. (3), 4, 854; Chem. Ind., 14, 214; Wagner's Jsb., 36, 

 336; J. Iron Steel Inst., 1891, a, 440; School Mines Quart., 12, 

 61; Oester. Ztschr. Berg- u. Huttenw., 39, 14; J. Soc. Chem. 

 Ind., 9, 1067; J. Anal. Chem., 4, 57; Chem.-techn. Rep., 30, b, 179. 



