BACTERIOLOGY 



MAN'S MICROBE FRIENDS 

 AND FOES 



BY W. E. CARNEGIE DICKSON 



M.D., B.Sc., F.E.C.P.EDIN. 



UKTUBEB ON APPLIED BAOTOEIOIOOT IK TUB UMIVEESIIT 

 OP EDINBURGH 



LONDON: T. C. & E. C. JACK 

 67 LONG ACRE, W.C., AND EDINBURGH 

 NEW YORK: DODGE PUBLISHING CO. 



