106 



PROCEEDINGS OF THE AMERICAN ACADEMY. 



TABLE VIII. 



metal and the temperature only, and liold that it is independent of the 

 nature of the negative ion. If tliis be so, we ought to find that all 

 cells of the type MilpMJXftM.^XIM, should have the same value so 

 long as Ml and M.y remain the same, and that a change in X should 

 have no effect, barring secondary disturbances such as differences of 

 wandering velocity, of dissociation, etc. In the non-reversible cells 

 M1IRXIM2, where these disturbing influences are eliminated, this 

 should be even more noticeably true. That this is the case for certain 

 metals I have shown in Tables II. and III. The results of other in- 



(^) Values marked thus are calculated from the other experiments, and are 

 not direct observation. 



