38 



Conductivity of Aqueous Solutions. Part II. 



term cell n as it was in all subsequent work. With these exceptions, the 

 conductance-capacity calculated from measurements made at widely dif- 

 ferent periods did not vary throughout the work. Even when the elec- 

 trode was removed because of a leak, and then replaced, it did not make 

 any measurable difference, as was, indeed, to be expected, since the value 

 is so largely determined by the dimensions of the quartz cup. The values 

 of the conductance-capacity, with the solutions from which they were 

 derived, are given in table 3. The unit of conductance employed here 

 and throughout this publication is the reciprocal ohm. 



Table 3. Conductance-capacity at 26. 



The original data from which these were calculated are all given in 

 tables 5 and 6. Each value is the mean of all of the values calculated 

 from all of the experiments on the solution in question at 26. 



The values derived from the 0.002' normal solutions are not included in 

 the means, because, owing to the higher dilution, they are probably not so 

 reliable as the others. They are given here, especially to show that our 

 conductance measurements were not affected either by polarization or by 

 unsymmetry in the telephone ; for had this been the case, our capacity 

 values calculated from these solutions would not have agreed with those 

 derived from the 0.1 normal solutions. 



As explained in section 10, the conductance-capacity changes with 

 the temperature; the percentage corrections to be applied at the different 

 temperatures of the experiments to the values of it at 26 are as follows : 

 0.23 at 140 ; 0.41 at 218 ; 0.56 at 281 ; and 0.58 at 306. 



