JACQUES LOEB 



101 



Fig. 10 gives the curves for the viscosity of 1 per cent solutions of 

 gelatin chloride, sulfate, oxalate, and phosphate. The abscissae are 

 the pH, the ordinates the ratio of the time of outflow of the gelatin 

 solutions divided by the time of outflow of pure water. For the sake 



12 



1.1 



~ 1.0 



pH 1 



47 



Fig. 10. The curves of specific viscosity of 1 per cent solution of originally iso- 

 electric gelatin brought to different pH by the acids mentioned in legend of Fig. 

 9 except that HCl is used for HNO3. The curves of viscosity for gelatin chloride, 

 phosphate, and oxalate are practically identical. Specific viscosity given as time 

 of outflow of gelatin solution divided by time of outflow of water through vis- 

 cometer at 24°C. 



