New York AGRICULTURAL EXPERIMENT STATION, 33 
from the reacting ones. The milk of the isolated cows after pas- 
teurization is also used for human food. 
3. If any of the isolated cattle give evidence of the disease 
advancing, such as enlarged glands or emaciation, they are 
slaughtered. 
4. The non-reacting animals are tested from time to time and 
if any individuals react they are placed with the isolated ones. 
5. The calves that are raised from the reacting cows and which 
fail to react to tuberculin’ are placed in the sound herd. 
As the sound herd is replenished the isolated cattle may be 
fattened and killed, under proper inspection, for beef. The laws 
of nearly, if not all, countries permit the use of meat of tubercu- 
lous animals for food when the disease is localized. In this way 
“It is important to test, with tuberculin, calves that have been born of 
tuberculous dams and raised on pasteurized milk of tuberculous cows for 
the reason that it is possible through inadvertent accidents that some of them 
have become infected. In our observations in various herds from one to 
four per cent. of the calves brought up under these condition have reacted to 
tuberculin at six months of age. No such cases appeared among the calves 
of the Experiment Station herd during the progress of this work. 
™In the disposition of tuberculous cattle, practice has established the 
feasibility and safety of using the flesh for food when the disease is localized. 
The United States Meat Inspection Regulations permit the carcasses of 
tuberculous animals to pass and to be sold as sound when the lesions are 
restricted in their distribution as follows: 
“ (1) The carcasses may be passed when the lesions are limited to one 
group of lymphatic glands or one other gland. 
““(2) The carcasses may be passed when the lesions are limited to two 
groups of visceral lymphatic glands in either the thoracic or abdominal 
cavity. 
“ (3) Thecarcass may be passed when the lesions are limited to two visceral 
organs (other than lymphatic glands) in the thoracic or the abdominal cavity, 
provided the lesions are slight, calcified, and encapsulated. 
“(4) The carcass may be passed when the lesions are limited to one group 
of visceral lymphatic glands and one other organ in the thoracic or abdomi- 
nal cavity, provided the lesions in the affected organs are slight. 
“(s) The carcass may be passed when the lesions are confined to two 
groups of visceral lymphatic glands and one other organ in the thoracic or 
abdominal cavity, provided the lesions are slight, calcified, and encapsu- 
lated. 
“ (6) The carcass may be passed when the lesions are confined to the lungs, 
the cervical lymphatic glands, and one group of the visceral lymphatic 
glands of the thoracic cavity, provided the affection is slight and the lesions 
are calcified and encapsulated.” U.S. Dept. Agric.: B. A. I. Order 125. 
3 
