MIXTURES OF ELECTROLYTES MACGREGOR. 119 



according to assumption (1) the conductivity would be greater 

 than Bender's reduced value by 1.6 per cent, and that according 

 to assumption (2) it would be greater by 1.3 per cent. Similar 

 calculations could not be carried out with solutions stronger 

 than No. 18, owing to lack of data. If the above assumptions 

 be regarded as representing even roughly the effect of mixing on 

 the ionic velocities, the calculations based on them shew that 

 the error introduced by neglecting the effect of mixing would be 

 of the same sign and order of magnitude as the differences 

 between the calculated and observed values of the above table. 

 While, therefore, such calculations are of little value, they 

 strengthen the suspicion that the discrepancies of the above 

 table are due to the impossibility of taking into account the 

 effect of mixing on the velocities of the ions. 



