480 



ELECTRICAL CHARGES AND ANOMALOUS OSMOSIS 



inside the pores of the membrane a considerable transport of water 

 by electrical forces must occur. If no such transport is noticeable, 

 it means that c is zero (as the Donnan theory demands, since gelatin 



320 

 300 

 280 

 260 

 240 

 220 

 200 

 180 

 160 

 140 

 120 

 100 

 80 



^ 





60 

 40 

 20 



^ Z048 1048 512 256 IZ6 64 3E 16 6 4 Z ^^^ ^''^ ^ 



Concentration 



Fig. 5. Transport curves at the isoelectric point. Those for KCl, LiCl, MgCl2, 

 BaCl2, and MgS04 resemble the transport curves for cane-sugar while Na4Fe(CN)« 

 seems to transfer a negative charge to the isoelectric gelatin. 



