A TEXT-BOOK 



OP 



BACTERIOLOGY 



INCLUDING THE 



ETIOLOGY AND PREVENTION 



OF 



INFECTIVE DISEASES 



AND A SHORT ACCOUNT OF 



YEASTS AND MOULDS, H^EMATOZOA, AND 

 PSOROSPERMS 



BY 



EDGAR M. CROOKSHANK, M.B. 



PROFESSOR OF COMPARATIVE PATHOLOGY AND BACTERIOLOGY, AND FELLOW OF KING 



FOURTH EDITION 

 RECONSTRUCTED, REVISED AND GREATLY ENLARGED 



LONDON 

 H. K. LEWIS, 136, GOWER STREET, W.C. 



1896 



