546 Mr. H. P. Walmsley on the Distribution of the 



electrode to the largest was 7 per cent. Since the observa- 

 tions most desired were those with rods of small diameter, 

 no corrections to the observed readings were made. The 

 values given in the accompanying table appear to be accurate 

 to a few per cent v judging from the way in which individual 

 observations agreed. The results are shown graphically in 

 fig. 3. Unfortunately it was not found possible to work 



6-0 

 5-0 



£3'0 



y 



5 2-0 



n 











Fig. 3. 



































































































































d-o 



14 VI J..0 0-8 

 faLAT/Vt ANOQ£ /ICT/V1TY 



0-6 



0-2 



with wires of diameter less than 0*45 mm., siuce they lack 

 sufficient rigidity to remain centrally in the chambers. 

 There seems little grounds for doubting that the curve if 

 continued would pass through the origin. At most the 



Electrode. 



Metal. 



Diameter. 



Relative Activity. 



1. 



Brass. 



0*45 mm. 



1-00 



2. 



Brass. 



095 mm. 



1-37 



3. 



Copper. 



2-00 mm. 



1-67 



4. 



Brass. 



3-23 mm. 



1-89 



5. 



Brass. 



3-58 mm. 



1-98 



limiting value of the activity for an infinitely thin electrode 

 is extremely small, and this therefore conclusively proves 

 that no negatively charged active deposit carriers are formed. 

 The anode activity consists therefore solely of uncharged 

 active deposit. 



Again, it is obvious that the distribution of active matter 

 between two cylindrical surfaces depends upon the dimen- 

 sions of these surfaces. If the outer cylinders were the 

 cathode and a very fine wire were employed for the anode, 



