FINAL RESULTS WITH ZINC AMALGAMS. 



45 



1.7 



1.6 



1.4 



1.2 

 1.0 

 0.8 

 0.6 

 0.4 

 0.2 



log 2 k>g4 log8 I0gl6 I0g32 l0g64 



Fig. 7. Final Results with Zinc Amalgams. 



Deviations from the theoretical potential are plotted in millivolts as ordinates, 

 logarithms of the concentration-ratios as abscissae. The most concentrated amalgam 

 at the origin contained about 0.9 per cent of zinc. The dotted curve is a repetition 

 of figure 6; the continuous curve represents the better results not vitiated by oxidation. 



from air as before. With this new electrolyte measurements of the cell 

 1-22 were repeated, with the result -k = 0.03401, instead of 0.03402 as before. 

 These values are practically identical ; hence the conclusion of Richards and 

 Lewis ^ that the potential of these cells is independent of the concentration 

 of the electrolyte is confirmed. There is every reason, from a theoretical 

 point of view, for the acceptance of this conclusion. 



Proc. Am. Acad., 34, 93 (1898). 



