38 



IONIZATION COEFFICIENTS OF CERTAIN 



the solution. The following table gives the results of the obser- 

 vations together with the values of the temperature coefficients, 

 (/"is io)/j"i8- Concentrations are expressed in gramme-equiva- 

 lents of anhydrous salt per litre and conductivities in terms of 

 10~ 8 times the conductivity of mercury at C. The conduc- 

 tivities at 18 were tested by comparison with Kohlrausch's 

 values, these values when plotted on coordinate paper being 

 found to lie practically on the same curve as mine. 



TABLE I. 



It will be seen that the temperature coefficients for potas- 

 sium sulphate solutions diminish with increase of dilution 

 while those for sodium sulphate increase. This result* was so 



* The results of this table are in close agreement with those obtained by Deguisne 

 (Dissertation, Strassburg, 1895), of which Mr. Archibald was not aware. J. G. M. 



