THIRTY-SEVENTH ANNUAL CONVENTION. 195 



PROFESSOR H. L. RUSSELL. 



Madison, Wis., March 8, 191 1. 

 Illinois State Dairymen's Association : 



In connection with the report submitted by Dr. Welch, rela- 

 tive to tuberculosis post mortem demonstration held at the 

 Kerber Packing House near the city of Elgin, in January, 191 1, 

 I would state that five animals were killed that were reported as 

 having been secured from a herd which had been tested by Dr. 

 Welch, three of the animals having been condemned on the 

 basis of reacting positively to the tuberculin test, two having 

 been slaughtered which did not react. These animals were 

 killed on the killing floor of the Kerber Packing House, but this 

 space was too small to accommodate the crowd, and as each 

 animal was killed, the internal organs, including the pluck and 

 bowels, were removed and carefully examined by Dr. Scott, Dr. 

 W r elch and myself. Portions of this viscera were then placed 

 in pails, the pails being numbered to correspond to the animal 

 so numbered, and taken outside of the building where they could 

 be examined more particularly by those in attendance. Owing 

 to the inclemency of the weather, it was deemed advisable to 

 transfer this material to the Coliseum in the city, where further 

 details relative to the diseased tissues and the general subject 

 of tuberculosis and the tuberculin test could be more satisfac- 

 torily discussed. In these cases, I affirm that the record of post 

 mortem lesions as detailed by Dr. Scott, is correct, and that two 

 of the animals (Nos. 3 and 25) showed marked liver lesions, 

 while No. 15 was evidently tubercular^ but not so well advanced. 

 The other two animals (Nos. 5 and 13) which had failed to re- 

 act to the test, but were killed for the purpose of checking the 

 results, showed no lesions whatever. 



The post mortem was, to my mind, a thoroughly satisfac- 

 tory demonstration of the value of the tuberculin test to detect 

 the presence of the disease in the animal where the disease was 



