2 8 THE CAUSATION OF DISEASE. 



by what word, or combination of words, we choose to designate 

 any particular disease so long as we have a clear idea of the 

 morbid interactions (or what is known of them) which the 

 name chosen is intended to connote ; and inasmuch as the 

 morbid interactions are in no two cases, even of the so-called 

 " same " disease, exactly alike, we must allow a considerable 

 latitude to the meaning of the same term, modifying it in 

 different cases according to our exact knowledge of the morbid 

 process. 



