86 
REPORTS OF CASES. 
cular material, bringing about a generalized, acute miliary tuber¬ 
culosis. 
In abdominal tuberculosis in the horse the spleen is fre¬ 
quently found involved, the liver rarely. The former may as¬ 
sume a large size and may weigh 20 to 25 pounds. 
Primary pulmonary tuberculosis is generally of the miliary 
type, while large tubercular nodules and masses are rarely seen 
in the lungs of this animal. The peribronchial lymph nodes are 
found enlarged and studded with yellowish nodules. While the 
respiratory mucosa is sometimes ulcerated, the serous mem¬ 
branes, the pleura and peritoneum when the seat of tubercular 
lesions, are a picture similar to Pearl Disease ” in cattle. 
The case observed was in a pure-bred Shire stallion, five 
years old and weighing 1,780 pounds. He was purchased in 
Illinois and brought to North Dakota during the spring of 1910. 
I first saw him on May 11, 1910, after he had been driven 
about twenty miles and stabled with the stallions of this locality, 
awaiting examination for license with the Stallion Registration 
Board. 
On passing through the stable, his attitude attracted my 
attention; his temperature was taken and found to be 104, with 
a pulse of 60. He was immediately isolated, fearing influenza. 
The following morning his temperature was 102, pulse 48. 
He was then examined, but not put through the ordinary routine. 
A small enlargement was found at the entrance of the thorax 
just above the point of the sternum, but, owing to his good 
condition, palpation did not reveal its outlines distinctly. 
Nothing more was seen of the stallion until August 10, when 
I was summoned to the farm and found him greatly emaciated. 
The owner stated that he had been running down all summer 
and had had a chronic cough. The tumor at the entrance of the 
thorax was now plainly visible and found to be pressing upon 
the trachea and emerging vessels. Respiration was difficult at 
60, temperature 102, pulse 60. 
Auscultation over the lungs showed a dulness along their 
posterior borders, and a peculiar tubular breathing throughout. 
An examination on August 13 showed no change. On 
August 27 pulse and temperature remained the same as on 
August 10, but respiration was more difficult and rapid, 70 per 
minute. He now had difficulty in rising and would cough at 
the least exertion. At no time did he show a loss of appetite 
or give evidence of any abdominal pain. Notwithstanding his 
