106 ION SERIES AND PROTEINS. I 



that of Na proteinate of the same pH and the same concentration of 

 originally isoelectric gelatin. 



7. These results exclude the possibility of expressing the effect of 

 different acids and alkalies on the osmotic pressure of solutions of 

 gelatin and egg albumin and on the viscosity of solutions of gelatin 

 in the form of ion series. The different results of former workers 

 were probably chiefly due to the fact that the effects of acids and 

 alkalies on these proteins were compared for the same quantity of 

 acid and alkali instead of for the same pH. 



