TUBERCULIN TESTS OF THE COLLEGE HERD. 23 
those which reacted, there were 18 new ones tested January 
12. Of the 18 animals, four, or 22 per cent, reacted. This 
does not include No. 8 which gave a temperature rise of 2 
degrees. 
While we had taken the temperatures of all the,cattle, 
not quite enough tuberculin was obtained so a third test was 
made January 26. One Jersey bull and four cows were 
tested. (See Table III.) As none gave a rise of tempera¬ 
ture of more than 2 degrees it was not considered sufficient 
to prove the disease in any of them. 
SUMMARY OF REACTIONS. 
A total of 31 head were injected with tuberculin and 10 
reacted, or thirty-two and one-fourth per cent. There were 
11 Jerseys, of which 5 reacted, or nearly 45.5 per cent. Out 
of 20 Shorthorns, 5 gave definite reactions, or 25 per cent., 
and 2 doubtful cases in which the temperature did not rise 
high enough to be considered proof of disease. 
There were in reality two herds of Shorthorns. The 
old herd which had been raised on the College farm or had 
been here for 8 or 9 years did not contain a diseased animal 
while the 5 cases were out of a herd of 12 animals which 
had been brought from Iowa one year before the test. Then 
there was 41% per cent, of the Eastern Shorthorns and none 
of the Western animals tuberculous. While this may have 
been an accident, we take it as significant, and probably it 
indicates what may be expected in a general way. It is 
generally believed that Western range cattle are practically 
free from tuberculosis. 
POST MORTEMS. 
Four of the reacting Jerseys and one Shorthorn have 
been killed and carefully examined. These examinations 
were conducted by Dr. Glover. In order to make the ex¬ 
aminations as thorough and authentic as possible Dr. Glover 
secured the assistance and cooperation of Dr. L. Clark, a 
veterinarian of long standing and ability in the government 
employ, and Dr. R. McCarroll of Fort Collins. Mr. C. J. 
Griffith and the writer assisted with the work and took the 
notes. The College authorities were present to satisfy 
themselves that the disease was demonstrated and the class 
in veterinary science took an interested part- None of the 
cows had the disease far enough advanced to make it possi¬ 
ble for the veterinarians to detect it by physical examina- 
