74 CONDUCTIVITY AND VISCOSITY IN MIXED SOLVENTS. 



(3) It has been shown that the explanation of the minimum in conductivity 

 offered by Jones and Lindsay is not sufficient. The phenomenon has been 

 shown to be dependent primarily upon the decrease in fluidity which results 

 when the components of the solvent are mixed. 



(4) The hypothesis of Dutoit and Aston has been proved quantitatively 

 for certain salts in three solvents water, methyl alcohol, and ethyl alcohol. 



(5) The hypothesis of Kohlrausch (formation of an atmosphere of the 

 solvent around the ions in solution) has been shown to hold for binary 

 electrolytes in methyl and ethyl alcohols. 



(6) A hypothesis correlating conductivity, association, and viscosity (or 

 fluidity) has been proposed, and has been shown to hold for all the cases 

 available for discussion. 



