IMMUNE SERA 



A CONCISE EXPOSITION OF THE 

 MAIN FACTS AND THEORIES OF 



INFECTION AND IMMUNITY 



BY 



DR. CHARLES FREDERICK BOLDUAN 



BACTERIOLOGIST, RESEARCH LABORATORY, DEPARTMENT OF HEALTH 

 CITY OF NEW YORK 



FOURTH EDITION, REWRITTEN AND ENLARGED 

 FIRST THOUSAND 



NEW YORK: 



JOHN WILEY & SONS 



LONDON: CHAPMAN & HALL, LIMITED 



1911 



