310 



REPORT— 1S9S. 



■what difierent conditions prevailing in the two kinds of experiments has 

 not yet been investigated. 



Chromates completely prevent precipitation as with nickel. 



AVith some orf/mtic sails, tartrates for example, the deposits arc of very 

 goo 1 appearance, but the results are apt to be too high, as in the case of 

 nickel. 



Cnhalt Di terminations in Cobalt Ammonium Sulj?7iatc. 



Other Electrolytic Methods. 



As already stated, the great majority of the experiments so far carried 

 out have dealt with the ammonium sulphate and ammonia method, as it 



