280 



COLLECTED STUDIES IN IMMUNITY. 



TABLE VIII. 



1 cc. GUINEA-PIG BLOOD +0.5 EXTRACT OF Ox PANCREAS = TWICE 

 THE SOLVENT DOSE. 



of sera investigated by us; it is especially marked in ox serum, as can 

 be seen by the following examples. (See Table IX.) 



TABLE IX. 

 1 cc. 5% Guinea-pig Blood +0.5 cc. Extract of Ox Pancreas. 



That these antihsemolytic actions of normal sera are not due to 

 antibodies in the proper sense is shown by the fact that this protective 

 action withstands the action of high temperature, even 100 C. This 

 is shown by the following table. 



