274 BACTERIOLOGY. 



all diseases must be called contagious, for the 

 word used in this fashion loses completely its 

 peculiar and narrower significance. By some 

 such quibble, for example, Koch and certain 

 of his followers are able to declare cholera to 

 be a contagious disease, while medical expe- 

 rience as well as bacteriological experiments 

 prove plainly that cholera as a rule is not in 

 the strict sense a contagious disease. 



