314 ON THE CALCULATION OF THE CONDUCTIVITY OF 



tions with concentration ranging from 0.1 to the highest 

 examined. 1.294, are beyond the limit of error, and are much 

 greater than the differences observed for mixtures of Potassium 

 and Sodium Sulphate, or for any mixtures yet examined of a 

 corresponding concentration. This result would appear there- 

 fore to support the view that the double salt does exist as such 

 to a certain extent at any rate in solution. 



Comparison of the Conductivity , of Solutions of the Double 

 Salt with Equivalent Mixtures of Solutions of 

 its Constituents. 

 TABLE III. 



