420 



MR. F. E. SMITH ON THE NORMAL WKSTOX CADMIUM CELL. 



Table X. Dr. WOLFF has also forwarded the results of comparisons made by him 

 on P 8, P 9, P 10, and 187 (American), of PCN 4 and PCN 6 (French), and O 1 and 

 O 2 (German). Unfortunately, the depolariser in the German cells was disturbed in 

 transit, and the results obtained are not, therefore, given in Table X. 



TABLE X. 



August 27, 1907. E.M.F. of Cell-Mean E.M.F. of the American, French, 



and English Cells. 



American 



P8 - 2xlO- 6 volt 



P9 - 5xlO- 



P10 - 5xlO- 



187 + 5x10- 



+ 16xlO- 

 PCN 6 - 18 x 10- 



H 26 - 5 x 10- 



C 19 + 5 x 10- 



P53 + 4xlO- 6 



P 54 + 5 x 10-" 



Mean = - 2 x 10~ 6 volt 



Mean= - 1 x lO' 6 



Mean = + 2 x 10' 



We heartily thank the various gentlemen who have assisted in these comparisons. 



