388 STUDIES IN IMMUNITY. 



corpuscles of any kind, and even from the same individual that 

 furnishes the colloid, give the phenomenon. 



4. The presence of this colloid explains the peculiarities that 

 have been noted by Ehrlich and Sachs. It is, moreover, most evident 

 in the experiments which we have detailed for the purpose of out- 

 lining the mode of action of the various substances that intervene 

 in the agglutination and hemolysis under consideration. 



5. Inasmuch as Ehrlich and Sachs' interpretation is false, it is 

 evident that the single argument that would seem to prove Ehrlich 's 

 thesis of a separate complementophilic atom complex in the sen- 

 si tizer must be rejected. And, accordingly, the terms " amboceptor " 

 and " complement " should be abandoned as erroneous. 



