BACT. PERTUSSIS AND B. BRONCHISEPTICUS 



195 



AGGLUTINATION REACTIONS 



The agglutination reactions of these two organisms have pre- 

 sented some very interesting and rather novel phenomena which, 

 to the writers, suggest at least a distant relationship between 

 them. 



In the early part of this year Povitzky and Worth reported 

 the results of some agglutination experiments with these organ- 

 isms, using a Bad. pertussis antiserum only, and concluded that, 



