420 

 400 

 380 

 360 



340 



320 



e 300 



^ 280 



.£ 260 



C 240 

 O 



*-^ 220 



O 200 



to 



^ 140 



-^ 120 



100 



80 



60 



40 



+20 







-20 



HHW MrinriririiiririiMPM 



4096 2048 1024 512 E56 128 G4 32 16 8 4 ^ "^ '^^^ 



Concsntration 



Fig. 1. Influence of concentration of non-electrolytes on initial rate of diffusion 

 of water through a collodion membrane from pure solvent to solution. Abscissae 

 are logarithms of concentrations, ordinates the rise in mm. in level of solution in 

 the manometer tube after 20 minutes. 



175 



