84 



THEORY OF COLLOIDAL BEHAVIOR 



second varying only between 80 and 81 seconds, thus guarantee- 

 ing the reproducible character of the experiment. 



FIG. 23. Curves representing relative viscosity of gelatin succinate, tartrate, 

 and citrate. The curves are practically identical with those for the viscosity of 

 gelatin chloride and phosphate. 



The results can be given briefly. Figure 22 gives the curves 

 for the relative viscosity of 0.8 per cent solutions of gelatin chloride, 



