JACQUES LOEB 745 



4. A method is given by which the strength of the attractive elec- 

 tric force of electrolytes on the molecules of water can be roughly 

 estimated and the results of these measurements are in agreement 

 with the two rules. 



5. The electric attraction of water caused by the electrolyte in- 

 creases with an increase in the concentration of the electrolyte, but 

 at low concentrations more rapidly than at high concentrations. 

 A tentative explanation for this phenomenon is offered. 



6. The rate of diffusion of an electrolyte from a solution to pure 

 solvent through a collodion membrane seems to obey largely the kinetic 

 theory inasmuch as the number of molecules of solute diffusing through 

 the unit of area of the membrane in unit time is (as long as the 

 concentration is not too low) approximately proportional to the 

 concentration of the electrolyte and is the same for the same con- 

 centrations of LiCl, NaCl, MgCl2, and CaCl2. 



