VACCINE AND SERUM THERAPY 



INCLUDING ALSO A STUDY OF INFECTIONS, THEORIES 

 OF IMMUNITY, OPSONINS AND THE 

 OPSONIC INDEX 



EDWIN HENRY SCHORER, B. S., M. D., 



"/ 



ASSISTANT PROFESSOR OF PARASITOLOGY AND HYGIENE, UNIVERSITY OF MISSOURI; 



FORMERLY ASSISTANT ROCKEFELLER INSTITUTE FOR MEDICAL 



RESEARCH, NEW YORK CITY. 



ILLUSTRATED. 



St. Louis 



C. V. MOSBY CO. 

 1909. 



