• JACQUES LOEB 



395 



380 

 360 

 340 



^ 4096 2048 i0£4 512 256 128 64 32 16 8 4 2 



Concentration 



Fig. 2. Initial rate of diffusion of water from pure water through collodion 

 membrane to solution of electrolytes rendered about IQ-^ n acid through addition 

 of HNO3. Though the water is negatively (and the membrane positively) elec- 

 trified the initial rate of diffusion of water into the solution increases with 

 increasing valency of the cation and dimmishes with increasing valency of the 

 anion. The drop in the curves in concentrations beyond m/64 or m/32 is due to 

 the fact that in concentrations higher than these the depressing effect of the 

 anion prevails over the opposite effect of the cation. For explanation of second 

 rise of curve see legend of Fig. 1. 



