128 ON THE CALCULATION OF THE CONDUCTIVITY OF 

 POTASSIUM CHLORIDE. 



SODIUM CHLORIDE. 



*Obtained through Prof. MacGregor's interpolation' formula, Trans. N. S. Inst. 

 Sci., Vol. ix, p. 112. 



In the case of hydrochloric acid, sufficient data were not 

 available. I therefore made a series of measurements of the 

 concentrations and conductivities of solutions of this acid, the 

 results of which are given in the following table : 



The following table contains values of the dilution and con- 

 centration of ions in hydrochloric acid solutions, obtained in 



