TRANSMISSION OF TUBERCULOSIS THROUGH MEAT AND MILK. 625 
tion, that cattle tuberculosis is most likely not transferable to 
man to any appreciable extent. More will be said in regard to 
Professor Koch’s view of this subject later in this article. 
On account of the .revival of this important consideration 
and the bearing it has upon sanitation, it is highly desirable 
that a careful statement of the facts of the case should be made 
and that any warrantable conclusions be adduced therefrom. 
This discussion will be confined to the limits indicated by the 
title set forth, and only the meat and the milk of the bovine 
species will be considered. 
For the sake of clearness the subject may be treated under 
two general subdivisions, viz. : (i) Transmission to Animals, 
and (2) Transmission to Man. 
1.—transmission to animals. 
A. By Meat. 
The portions of the body not commonly used for food, such 
as the brain, large lymphatic glands, spleen, bladder, uterus, 
lungs, testicles, mammary gland, skin, shall be excluded. The 
tongue, muscles, small intermuscular lymphatic glands, diges¬ 
tive tube, heart, liver and kidneys are included. 
No reference will be made to experiments in which the 
material inoculated or fed is not such as we have chosen to con¬ 
sider, or in which the character of material is not stated, of 
which classes there are a great many experiments which by 
their positive results demonstrate that tuberculosis can be trans¬ 
mitted from animal to animal of the same or of a different 
species. 
1. By Artificial Methods. 
Arloing 1 inoculated the muscle juice of ten tuberculous cows 
into guinea-pigs, and the result showed that the muscle juice of 
two of the cows was infective, 3 out of 10 guinea-pigs, 30 per 
cent., inoculated from these two cows becoming tuberculous. 
Galtier 2 infected two rabbits with the juice of the flesh of a 
tuberculous cow. 
Nocard 3 produced tuberculosis in 1 case out of 21, 5 per 
