17 



of Hie system through overwork. Not- 

 withstanding' in this class of animals which 

 in some cases are kept half the time in 

 sheds and half at grass contamination 

 has not yet spread in alarming propor- 

 tions. The cases of tuberculosis revea- 

 led in our Slaughter Houses, indicate 

 that we may consider that the bovines 

 used in husbandry and haulage over 

 all the Territory of the Republic are in- 

 fected only in an incipient form. 



Without hesitation therefore it may be 

 stated that the diffusion of tuberculosis 

 is insignificant among animals exposed 

 by the method of keeping, special use, 

 age, or stalling, to a medium most favou- 

 rable to contamination by tuberculosis. 



To permanent stalling, crowded dai- 

 ries, and the breeding establishment; 

 which of themselves favour contamina- 

 tion, must be added, that in the greater 

 number of the cow- Sheds in cities, and 

 in a great many breeding establishments, 

 the sheds have no stalls, and only one 



