55 + 



IMMUNITY 



power of clumping red blood corpuscles. This clumping or 

 so-called agglutination of the red cells occurs previous to their 



Fig. 122. a. Comple- 

 ment ; b, intermediary 

 body; c, receptor; d, 

 part of the cell. 



Fig. 123. A cell with dijferent kinds of 

 receptors; b, cell ; c, c and d, different 

 kinds of receptors ; a, bodies having but 

 one haptophore or combining group of 

 atoms. 



Pig. 124. A cell shaming the separation 

 of the receptors or antitoxin and the 

 combination of toxin with free anti- 

 toxins ; c, cell; b,free receptor; a toxin. 



Fig. 125. A drawing 

 showing the action of 

 anti-complement ; a, com- 

 plement ; b, intermedi- 

 ary body ; c, receptor ; d, 

 cell ; e, anti-com.plem.ent. 



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