JACQUES LOEB 



401 



What has been shown for the effect of acids on the physical prop- 

 erties of proteins can also be shown for the influence of alkalies. 

 Thus the addition of KOH to Na gelatinate of pH 12.0 depressed the 



o 

 o 



u 



■i— t 

 o 



2.8 

 2.7 

 2.6 



as 



2.4 

 2.3 

 22 



2.1 

 2.0 

 1.9 

 1.8 

 1.7 

 L6 

 1.5 

 1.4 

 1.3 

 1.2 

 1.1 

 1.0 



^ 8192 40962048 1024 512 256 128 64 32 16 8 4 2 ^^ ^ 



Concentration 



Fig. 6. The relative depressing effect of equal molecular concentrations of 

 NaCl, Na2S04, and Na4Fe(CN)6 on the specific viscosity of a gelatin chloride 

 solution of pH 3.0 is approximately as 1 :4:16. 



