116 



Scientific Proceedings (91). 



serum showed no change in the protein quotient. The results are 

 essentially in accord with previous work on the non-dependence of 

 immunity on the ratio of serum proteins. Apparently, to produce 

 a decided change in the protein quotient a substance must be 

 injected which causes a marked reaction in the injected animal. 

 This is not accomplished by injection of homologous sera. 



