BANCROFT. 



POTENTIAL OF METALS. 



109 



tial differences between the metals mercury, zinc, and cadmium, and 

 the solution. Mercury is positive towards the solution, zinc and 

 cadmium negative. 



TABLE X. 



The values for Sol I Hg are identical for dilutions of 11 and 101, with 

 the exception of KCl, KBr, K2S04, and H2SO4 ; and the variations 

 for K2SO4 and H0SO4 are in opposite directions, and certainly due to 

 experimental error. There is also no reason to assume that KCl is 



