190 ILLINOIS STATE DAIRYMEN'S ASSOCIATION. 



Thursday Forenoon, January 19, 1911 



TUBERCULIN DEMONSTRATION 



Conducted by Dr. John Scott of Peoria, III., Assisted by Dr. W. W. Welch 

 of Elgin, III., and Prof. H. L. Russell of Wisconsin Uni- 

 versity, Madison, Wisconsin. 



The feature for Thursday was the tuberculin demonstra- 

 tion. As an educational feature and a demonstration of the 

 tuberculin test as a means of discovering the presence of tuber- 

 culosis in cattle, the Association arranged to have five animals, 

 three reacters and two non-reacters, slaughtered, the test to be 

 conducted in an entirtly impartial manner, let the results be 

 what they may. 



Dr. John Scott of Peoria, 111., conducted the test and was 

 assisted by Dr. W. W. Welch of Elgin and Prof. H. D. Russell, 

 Dean of the College of Agriculture, University of Wisconsin. 

 The details of arranging the test and the results are best told 

 in the sworn statement of those who had it in charge : 



The Illinois State Dairyman's Association : — I would re- 

 spectfully report that on January nth, 191 1, I received in- 

 structions from your Vice President, Mr. Joseph Newman, of 

 Elgin, to take what steps were necessary to procure five milch 

 cows for your tuberculin test and demonstration, advertised for 

 January 19th, 191 1, at Elgin; three of said cows to be those 

 reacting to the test and two to be those which did not react. I 

 accordingly secured a dairy of twenty-four cows and arranged 

 for testing them and to purchase five as per my instructions. 



On Thursday, January 12th, I started test, completing said 

 test on January 13th, using Pasteur tuberculin. The following 

 is the report of each cow : 



At 7:00 p. m. January 12th, each cow was injected with 2]/ 2 

 c. c. of Pasteur's tuberculin. 



