56 



ON THE CONDUCTIVITY, SPECIFIC GRAVITY AND 



These were the only observations made upon potassium sul- 

 phate, because E. H. Archibald 1 had made a sufficient number of 

 observations on solutions of this salt, and his results were found 

 to agree with mine. Archibald's results were expressed differ- 

 ently. The atomic weights used for determining his dilutions 

 were relative to Hydrogen. These dilutions can be changed 

 to the above by multiplication by the factor 1.0026. His 

 specific conductivities were expressed in terms of 10~ 8 

 times the specific conductivity of mercury at C. These values 

 of the conductivity can be expressed in Kohlrausch's new unit 

 by multiplication by 1.069xl() 4 . The new values for the 

 concentration of ions can thus be calculated as in the former case. 

 The following table gives the reduced results : 



TABLE III. POTASSIUM SULPHATE. 



1 Trans. Roy. Soc. Can. (2), 3, Sec. 3, 69, 1897-8. 



