— 21 — 



" Can they develop germs on the ground? 

 " Can they reproduce themselves in the 

 " water of the drinking places? Are they 

 " positively dangerous and is the conta- 

 " mination of the fields to be feared? 



" Can the bacillus of tuberculosis thri- 

 " ve upon the tops of the lucern (alfal- 

 " fa), for example,-if it can reproduce it- 

 " self in the water of the drinking pla- 

 " ces, does this constitute a case for 

 " alarm on the score of the propagation 

 " of tuberculosis? 



" Fortunately no such things occur 

 " It is now some time since experiments 

 " were made as to the endurance of the 

 " bacillus of tuberculosis outside the ani- 

 " mal medium, and we have learned that 

 " altho the virulence of the bacillus of tu- 

 " berculosis lasts a long time away from 

 " the organism, germs from that micro - 

 " be cannot thrive. The virulence of the 

 " sputa on the grass of the Argentine 

 " pastures is gteatly weakened, as that 

 " grass is exposed to the sun, and is 



