66 IMMUNE SERA 



To repeat for the point is of the greatest 

 importance the role of the immune body consists 

 in tying the complements of normal serum, which 

 have no affinity for the red cells or for the bacteria, 

 indirectly to these cells so that their solution and 

 digestion may be effected by the complements. 

 In other words, the immune body serves to con- 

 centrate on the corpuscular element to be dis- 

 solved all the widely distributed complement found 

 in normal serum. 



Ehrlich's conception of the relation existing be- 

 tween complement, immune body (i.e., amboceptor) 

 and erythrocyte is shown in the accompanying 

 figure. 



i. H. 



symotoxic group 



\ 



COMPLEMENT ^ 



haptophore group 

 complementophile gr. 

 IMMUNE BODY ~ 



:ytophile group 

 receptor 



CEL1 



FIG. 7 



Difference between a Specific Serum and a Normal 

 One. The difference, then, between a specific 

 haemolytic or a specific bactericidal serum and a 

 normal one consists in this * that the specific serum 

 contains an immune body which is specific for a 



