276 R. H. TRUE AND H. H. BARTLETT 
/ ^ s s e 7 9 /o // /s Af /^j^fsez^s/oz/ye/y/^/s 
II 12 
Fig. II. Curves showing the changes in concentration of the KCl solutions 
used in experiment 11. 
Fig. 12. Curves showing the changes in concentration of the NaCl solutions 
used in experiment 12. 
