THIRTY-SEVENTH ANNUAL CONVENTION. 197 



Thursday Afternoon, January 19, 1911. 



President: Professor Russell is here prepared to answer 

 any and all questions you may ask him and I hope you will not 

 hesitate to ask about anything you want information on. 



Member: Is every M. D. able to make this test? 



Professor Russell: The veterinary profession are taught 

 how to do this; certainly they could not do it without being 

 taught. The younger men have had much more opportunity 

 than the older men, but any old practitioner can learn to do it. 

 The veternary profession are competent as a rule. 



Member: From your experience do you consider this test 

 has been carefully taken? 



Professor Russell : The record is absolutely indisputable. 

 Neither Dr. Scott or myself saw the animals yet the record 

 showed those animals were affected. 



Member: In what way would that first animal infect oth- 

 ers? 



Professor Russell : It is dangerous when this abscess is 

 broken down. When that stuff gets in a dry condition it can 

 be conveyed from one to another when the particles of manure 

 are dry so that the tuberculin gets on them. It may be taken 

 by hogs, it may find its way into the milk supply and go to the 

 city and infect children, the creamery or cheese factory and go 

 back to farms through skim milk. 



Member : Is there danger of transmitting the disease by 

 means of the water bowl in the barn, the individual bowl? 



Professor Russell: No; because the water comes up. In 

 the common water trough there is greater danger. That is one 

 of the most serious ways of infection. 



