AND ITS RELATION TO ANIMAL LIFE 117 



tuberculosis is not communicable to the 

 human subject. Now, it is just the deficiencies 

 observable in such milk which are also found 

 in the human consumptive, and it seems 

 clear that a child fed on tuberculous milk will 

 thereby be rendered a fruitful soil for the 

 tuberculous microbe ; so that it matters little, 

 from the point of view of health, whether the 

 disease is actually communicable direct or not.! 

 It is sufficient that feeding upon tuberculous 

 milk or flesh, or milk or flesh derived from 

 animals with a tendency to tuberculosis, will 

 produce in the human that condition which 

 renders him most liable to the disease. Ob- 

 viously, then, we again come back to the 

 same point. The first thing to be done in 

 the prevention of consumption is to secure 

 mankind from improper, that is, chemically 

 defective food, and, as the necessary corollary, 

 to encourage such agricultural methods as 

 shall provide the food required. 



