MY EXPERIENCE WITH TUBERCULIN IN A SMALL HERD OF CATTLE. 
329 
at two cows that were not giving- the amount of milk they should 
and were also coughing. Upon examination he suspected 
tuberculosis and called Dr. Liautard into consultation, who pro¬ 
nounced them both to be suffering with the disease. They were 
sent to the college to be destroyed but before doing so, it was 
decided to inject tuberculin that the students might watch the 
results as well as examine them, and also see the pathological 
changes occuring from this disease. 
Cows No. 1 and 2 were admitted to the hospital January 3d, 
and the temperature taken three times the following day and on 
the 5th of January received an injection of 2 c.c. at 8 o’clock 
A. M. 
COW No. 1 
. 
COW No. 2. 
Before Injection. After Injection. 
Before Injection. 
After Injection. 
8 A. M. 101 4-5 
IOI 2-5 
• 102 4-5 
100 3-5 
10 “ 
IOI 2-5 
100 4-5 
12 M. 102 
100 4-5 
101 1-5 
IOI 
2 P. M. 
101 2-5 
101 2-5 
4 “ 
IOI 1-5 
IOI 2-5 
6 “ 
101 1-5 
IOI 2-5 
8 “ 101 4-5 
104 
IOI 
103 
10 “ 
io 5 i -5 
105 4-5 
1 A. M. 
106 1-5 
106 2-5 
6 “ 
io 3 3-5 
102 3-5 
8 “ 
102 3-5 
102 2-5 
12 M. 
102 
102 2-5 
6 P. M, 
102 3-5 
102 1-5 
Post - mortem 
No. 1. Left 
lung with large 
tubercular 
deposits, tracheal 
glands very large and filled with 
calcareous 
deposits and also 
a few nodules on 
the liver. 
Post-mortem No 2. Thyroid gland very large and tubercu¬ 
lar, small nodules on right lung and large lesions of mammary 
gland. 
The owner saw these post mortems and wished to have the 
rest of the cows examined, so on the 8th of January I went to 
the farm, arriving at 6:45 P. M., took the temperature then and 
at 10 P. M., at which time they were injected, the same quantity 
being used as in the other two. 
