192 ILLINOIS STATE DAIRYMEN'S ASSOCIATION. 





Jan. 12 



, 1911. 





Jan. 13, 1911. 









No. 12 m. 



3 p.m. 



6 p.m. 



6 a.m. 



8 a.m. 10 a.m. 



12 m. 







3. Durham Cow. 101. 4 



101.4 



101.6 



105 



105.4 105.6 



105-4 



X 





5. Durham Cow. 102 



102 



102.4 



101.6 



101.6 101.4 



101.4 



0. 



K. 



13. Durham Cow. 101. 4 



101.4 



101.6 



102.6 



101.6 101.6 



101.8 



o. 



K. 



15. Durham Cow. 101. 6 



101.6 



101.4 



104 



105 105 



105.4 



X 





25. HolsteinHeifer 101 . 4 



101.4 



101.2 



104.6 



106 105.6 



105.4 



X 





No. 25 was the first killed, Dr. John Scott of Peoria, 111., 

 and Professor Russell of Madison, Wis., conducted the post 

 mortem. On account of the size of the room only about seventy- 

 five farmers could crowd into it, hence as each animal was killed 

 the internal organs were exhibited to those outside and later on 

 at the Coliseum, where Dr. Scott and Dr. Russell explained to 

 about seven hundred dairymen the disease, tuberculosis, and the 

 tuberculin test. The post mortem showed a number of unmistak- 

 able lesions in the form of a large tubercular abscess in the 

 liver and slight lesions in the medeistinal glands of cow No. 25. 



Cow No. 3 was the next slaughtered, the liver also showing 

 well marked lesions, in the form of a large abscess, very much 

 broken down. 



Cow No. 15 when slaughtered revealed numerous tubercular 

 lesions in mesenteric glands. 



Cows Nos. 5 and 13, which did not react to the test, were 

 then slaughtered and carefully examined, no lesions of tubercu- 

 losis being found. 



From the above it will be seen that when a reliable tubercu- 

 lin is honestly used by one who knows his business and is done 

 in a careful manner, it is the best known method for determin- 

 ing which animal is affected with the disease, tuberculosis. 



Respectfully submitted, 



W. W. WELCH 



Veterinary Surgeon. 



Elgin, 111., Kane County, ss. 



W. W. Welch appeared before me this 28th day of Febru- 

 ary, 191 1, and affirmed the above report and statements made 

 therein are true and correct. E. F. MANN, 



Notary Public in and for said County and State. 



