THE 



CAUSATION OF DISEASE 



AN EXPOSITION OF THE ULTIMATE 

 FACTORS WHICH INDUCE IT. 



BY 



HARRY \CAMPBELL 



M.D., B.S. (LOND.) 



MEMBER OF THE ROYAL COLLEGE OF PHYSICIANS ; ASSISTANT-PHYSICIAN AND 

 PATHOLOGIST TO THE NORTH-WEST LONDON HOSPITAL 



LONDON 

 H. K. LEWIS, 136 GOWER STREET 



1889 



