

g 



CO 



-a 

 S 



460 



440 



420 



400 



380 



360 



340 



320 



300 



280 



260 



240 



220 



200 



180 



160 



^ 140 



120 



100 



80 



60 



40 



20 

 



wum.. u 2o4g 1024 512 256 128 64 32 16 8 4 

 pfl 5.9 5.8 5.7 5.6 5.5 5.3 5.1 5.0 4JB 



Fig. 4. Showing the same difference of membranes treated and not treated 

 with gelatin for solutions of LaCls. 



262 



