IMMUNITY. 91 



teria, but is not injuridus tci them. The amboceptor toxophorc 

 combined with or actingr upon bacteria produces a condition 

 favorable for the action of the combined amboceptor haptophore 

 and complement, i. e,, this enables the complement to cause dis- 

 integration of bacteria. The amboceptor thus renders condi- 

 tions favorable, i. e., makes it possible for the bacteriolytic sub- 

 stance, the complement, to exert destructive action upon bacteria, 

 the amboceptor acting as middle man. 



