442 Tuberculosis transmissible through Meat and Milk. [July, 
Tuberculosis prevails extensively among domestic animals 
over the entire globe, and especially in populous and crowded 
localities. In Mexico 34 per cent of slaughtered animals 
supply tuberculous meat, and it is probable that the milk 
cows are affected to the extent of 50 per cent in the large 
Van Hertsen, of Belgium, found tubercles in all the tissues 
of an apparently healthy bull seven years old. From these 
faCts it is apparent that there is great danger in eating un- 
cooked beef, for fear of contracting consumption, lhe 
sources from which consumption are derived is now known 
to be infinitely more numerous than former pathologists 
It is more dangerous to eat the milk of tuberculous ani- 
mals than to eat the meat ; for the milk is seldom cooked, 
while the meat is almost always cooked. Cooking is a most 
valuable sanitary measure. Cows confined in dark, damp, 
unventilated city stables, become tuberculous eventually to 
the extent of 75 percent. Fleming says:— -“For it must 
be borne in mind that there are few animals which have been 
kept for any length of time in cow-sheds, and fed and milked 
in the usual manner, which are not more or less phthisical^: 
more particularly is this the case if the dwellings are bad. 
The milk of tuberculous cows is of a poor quality, besides 
being liable to produce the disease. . . 
Klebs has produced tubercles in rabbits, guinea-pigs, and 
dogs, by giving them the milk of diseased cows. 
This milk given to young children produces catarrh of the 
intestines before the tubercles are deposited in the lungs. 
It is not often that the intestines of young children who die 
from what is supposed to have been cholera infantum are 
examined after death ; but doubtless tubercle of the intes- 
tines would be frequently found. 
Garlach and others have demonstrated that the milk ot 
tuberculous cattle will produce phthisis in creatures fed 
with it. , , , . . 
Fleming says “ It is certain that tuberculosis is a some- 
what common and a very destructive disease, among dairy 
cattle especially, and more especially those of towns. 
And consumption is one of the most fatal diseases of large 
cities, and doubtless from this cause. Marasmus is un- 
doubtedly largely attributable to diseased milk, and many 
thousands of children perish from tuberculosis . The ex- 
cessively hot weather of parts . of July and August is 
productive of an irritable condition of the stomach and 
bowels of young and teething children, which condition 
