TUBERCULOSIS. 43 



I once bought three cows from a dairy after 

 examining them carefully and when the tuber- 

 culin test was applied two of the three reacted 

 and at the postmortem examination were found 

 tuberculous. I do not remember one case where 

 a cow had reacted to the tuberculin test that she 

 was not found diseased at the postmortem. I 

 have never detected any bad effects from the 

 use of the tuberculin test. 



Contagion of the Disease.— It is now known 

 that hogs and calves contract tuberculosis by 

 being fed infected skim-milk from creameries. 

 It is also known that hogs contract tuberculosis 

 from the droppings of tuberculous cows. It is 

 easy to see the danger of milk being infected 

 by the dust from the dried droppings of the tu- 

 berculous cows getting into the milk at milking 

 time. 



Dean H. L. Russell, of the Wisconsin Agricul- 

 tural College, recently made the following state- 

 ment: 



"The great danger of transmitting tuberculosis 

 from the bovine to the human is through the child. 

 In the case of a baby, an infant that lives upon cow 's 

 milk that is infectious, there is not any question but 

 that tuberculosis is sometimes imparted to the child 

 in that way." 



Tuberculin Reliable.— The tuberculin test I 

 believe to be very reliable when intelligently 

 applied. Care should be taken to have the cows 



