40 BACTERIOLOGY 



Mumps, measles, scarlet fever, small-pox, chicken-pox, 

 rheumatism, beriberi, pellagra, and infantile paralysis 

 will all be added some day to the list of diseases whose 

 specific germ is known. Indeed, so rapid is the advance 

 along these lines that a list which may be considered com- 

 plete to-day may be far from so to-morrow. 



