374 



LOCAL ILSSUE REACTIVITY 



Table xi 



POTENCY OF VARIOUS HUMAN SERA IN NEUTRALIZATION OF 

 GONOCOCCUS REACTING FACTORS 



* One cubic centimeter per kilogram of weight, i = Strain 5 of New York Board 

 of Health. 



2 = Strain of patient "M. K." 



by agglutiniii-absorption and precipitin-absorption experiments 

 (Dopter and Koch) and by complement-fixation tests (Vannod, 

 and Watabiki) . It is tlierefore of interest to note that the above 

 serum "M. K." was potent in neutraUzing meningococcus react- 

 ing factors. This capacity was limited to filtrates of only one 

 meningococcus group, for serum "M. K." gave consistent neutral- 

 ization with 25 units of a Group I meningococcus filtrate but only 



