270 WHERRY AND SMITH— USE OF ROTATING ANODE Novembers, 



the estimation of molybdenum as well as a most gratifying means 

 of separating it from the alkali metals. The conditions were as 

 follows : « 



From these data the following curve was drawn. 



The rapidity with which the oxide separates and the ease with 

 which the determination of molybdenum may be carried out in this 

 way bids fair to render the electrolytic procedure the preferable 

 method with all who acquaint themselves with it. 



University of Pennsylvania. 



