REPORT OF THE TUBERCULOSIS COMMITTEE 
457 
of seven weeks. The pigs were afterwards kept for nine 
weeks before being slaughtered. Two other pigs from the 
same litter and of very nearly the same size were kept in the 
same stable, but in a different pen and were fed on grain. 
The four pigs were slaughtered September 30th, 1892. It 
was found that the pigs which received the milk, having had 
a balanced ration, had grown rapidly and were large and fat, 
while the pigs fed on grain (principally corn), had suffered 
from the absence of proteids in their food and were small and 
thin. The autopsies showed the two thin pigs, that received 
no milk, to be healthy, and the two fat pigs, that were given 
milk, to have tuberculosis of the post-pharyngeal lymphatic 
glands, and in one of them the mesenteric glands were tuber¬ 
culous as well. The post-pharyngeal glands in each case 
were of the size of a goose egg, cheesy, and with softened, 
creamy centers. The mesenteric glands contained numerous 
cheesy nodules of the size of a pea. These lesions were 
shown to be tuberculous by the detection of the bacillus and 
by guinea-pig inoculations. 
The cow that supplied the milk was slaughtered and was 
found to have extensive pulmonary tuberculosis, but the other 
organs, including the udder, were healthy. 
The second danger from tuberculosis, that which relates 
to the contagiousness of the disease among cattle, is the side 
of the question that appeals more especially to the farmer 
and veterinarian. 
An instance illustrating the spread of tuberculosis may be 
cited from the writer’s experience. A farmer who had con¬ 
ducted a dairy for four years and had never had any disease 
among his cattle, so far as he was able to discover, purchased 
a heifer calf, together with some other cattle, in October, 
1892. 
The heifer was evidently in poor health at the time of 
purchase and was therefore removed from the farmer’s herd, 
after it had been a member of it for a few days, and “ to give 
it a better chance,” it was turned into a passageway in the 
stable that ran along in front of the cows heads. Here the 
heifer was alone but was able to come in direct contact with 
