Vol. VI, No. 2.] 

 [NJ3.1 



Equivalent of 



45 



Total 

 Time. 



840" 



1680" 



2520" 



3300" 



4140" 



4980" 



5820" 



0660" 



7500" 



8340" 



10140" 



1 1 940" 



13740" 



15540 



17340 



19140* 



20940" 



22740 



24540 



28140 



// 



// 



// 



// 



// 



Total 

 Ca. Gain. 



1 



1 



1 



1 



1 



1 



1 



1 



1 



2 



2118 

 3985 

 4986 

 5889 

 6863 

 7579 



8289 

 8864 



9437 

 9953 

 1088 

 2283 

 3321 



4310 

 5402 

 6494 

 7322 

 8308 

 9238 

 1141 



Table II. 



Total 

 An. loss. 



Average 



0107 

 0204 

 0321 



0433 

 0543 

 0666 



0877 



1120 



1376 



1536 



2152 



2858 



3531 



4194 



4920 



5660 



6330 

 7126 

 7862 

 9418 



•8669 



•8667 

 •8689 

 •8685 

 •8733 I 

 8765 



•8791 



•8801 



•8803 



•8806 



•8806 



•8803 



•8798 



•8794 



•8822 



•8824 



•8795 



•8798 



■8789 



8792 



Current. 



0002908 



0002736 



0002276 



0002055 



0001898 



000 1 736 



0001620 



0001512 



0001429 



0001355 



000 1 242 



000 1 1 68 



0001103 



0001048 



0001006 



0000972 



000094 1 



00009 1 6 



0000892 



0000854 





Avrg. Av. 

 E.C.E. E.C.E. 

 (Ca.) (An.) 



0000147 

 0000 I 40 

 0000 1 47 

 0000151 

 0000 1 50 

 0000153 

 0000 1 7 1 

 0000 1 9 1 



0000208 



•0000209 



0000241 



0000272 



0000292 



0000307 

 0000321 

 0000335 

 0000344 



0000356 

 0000364 

 0000380 



The results of Tables I and II are plotted in fig. 1 (see next 

 page). The curves A and B are plotted between the actual 

 experimental values of the e.c.e.'s both for cathode and anode, 

 and the total time corresponding to each such value as given in 

 Table I. The curves C and D are plotted between the average 

 values of the e.c e.'s (as deduced from total cathode gain or 

 anode loss and the mean current) and the total time corres- 

 ponding to each value given in Table II. 



Results. 



The foregoing experiments show very clearly how the 

 observed e.c.e.'s for the cathode fall and those for the anode 

 rise at each successive electrolysis. As the sam 



was 



f quantity of acid 



during these experiments was stored in the- solution itself 



integral 



descend 



order for the other. 



each 



given by a 



case 



The rate of fall in the value of the cathode e.c.e. is com 



small 



» rapid rate 

 portion of t 



will 



followed 



ac> 



