JACQUES LOEB 



267 



The three salts, gelatin chloride, sulfate, and oxalate were chosen, 



since the ionic mobilities of CI, | SO4, and ^ oxalate are so nearly alike. 



It had been pointed out by the writer in a previous paper that the 



difference in conductivities of Na and Ba gelatinate and of gelatin 



o 



•a 



8 



U 



O 

 CO 



Q, 



10 



^ 6 





 pH 45 



5 6 7 8 9 10 



Fig. 9. Conductivity curve for Ba gelatinate. 



11 



12 



bromide and gelatin sulfate is too small to account for the difference 

 in the osmotic pressure of solutions of these two types of gelatin salts 

 on the basis of differences in the ionization of the two protein salts. ^ 



» Loeb, J., J. Gen. Physiol., 1918-19, i, 483, 569. 



