﻿156 STRONG. 



VIII. Formation of Agglutinins in Plague Immune Serum. 

 IX. Bactericidal Action or Plague Serum. 



X. Opsonic Action of Plague Serum. 

 XL Anti-infectious Power of Plague Serum. 

 XII. Curative Yalue of Plague Serum. 



XIII. Virulence of the Plague Bacillus. 



XIV. Eelation of the Immunity Reactions Between Pest, Rin- 



derpest AND HEMORRHAGIC SEPTICEMIA. 



XV. Plague Vaccination in Human Beings. 

 XVI. Conclusion. 



