THE PRINCIPLES OF 

 IMMUNOLOGY 



BY 



HOWARD T. KARSNER, M.D. 



PROFESSOR OF PATHOLOGY, WESTERN RESERVE UNIVERSITY, CLEVELAND 



AND 



ENRIQUE E. ECKER, PH.D. 



INSTRUCTOR IN IMMUNOLOGY, WESTERN RESERVE UNIVERSITY, CLEVELAND 



ILLUSTRATED 



PHILADELPHIA AND LONDON 

 J. B. LIPPINCOTT COMPANY 



