376 PROCEEDINGS OF THE AMERICAN ACADEMY. 



lence at the two electrodes. As observed under a high power, the 

 entire anode may be eaten away, and the electrolyte space filled with 

 masses of silver oxide, in some cases without a visible change at the 

 kathode. Not even a bubble of gas makes its appearance. If plati- 

 num is used as kathode in place of silver, not the smallest amount of 

 current can be sent through the cell without the appearance of streams 

 of minute bubbles. 



Jefferson Physical Laboratory, 



Cambridge, Mass., 

 December, 1909. 



