174 



REPORT— 1900. 



Tlie best course, in our opinion, is to separate the bismuth' by any of 

 the well-known methods in the form of hydroxide, to dissolve the latter 

 in sufficient nitric acid, and, after necessary dilution with addition of citric 

 acid, to electrolyse, with the precautions already described. 



The Determination of Iron. ^,y Charles A. Kohn, M.Sc, Ph.D. 



Bihliociraphy. 



