The Dissociating Powers of Free and of Combined Water. 129 



hydrated salts, since we believe their ionizing powers to be different. 

 This does not mean that the combined water is more or less associated, 

 for while the dissociating solvents with highest dielectric constants are 

 usually most highly associated, the principle is not without exception. 

 The results presented here are relative. It would be interesting to 

 make a further study along the same lines, but eliminating any influ- 

 ence of viscosity by the use of some indifferent substance such as 

 sucrose. Then, too, a determination of the dielectric constants of 

 the various pairs of solutions by one of the methods suggested by 

 Drude 1 or Smale 2 should lead one to a more definite statement. 



'Wied. Ann., 59, 17; 60, 600. *IUd., 57, 215; 60, 625. 



