408 



ION SERIES AND PROTEINS, III 



The 2 per cent gelatin chloride solution of pH 3.0 was diluted with 

 50 cc. of this mixture so that the resulting 1 per cent gelatin chloride 

 solution of pH 3.0 contained various concentrations of Na acetate (or 



2.8 

 2.7 

 2.6 

 25 

 2.4 

 2.3 



^ 



^ 2.2 



u 



2.1 

 2.0 



rT 1.9 





1.8 

 1.7 

 1.6 

 1.5 

 1.4 

 1.3 

 1.2 

 1.1 

 1.0 



^.^HHIiriri MUM M M M 



^ 8192 4096 2048 1024 512 256 128 64 32 16 8 4 



Fig. 



Concentration 



10. See legend of Fig. 9, except that the pH of gelatin solution is 3.0. 



more correctly of NaCl and Na acetate) . The curve representing the 

 depressing effect of this salt is given in Fig. 10, and is shown to be 

 identical with the curve representing the depressing effect of the addi- 

 tion of NaCl to gelatin chloride of pH 3.0. 



