500 
All tuberculous animals should be slaughtered in abattoirs having 
Federal inspection, and the money obtained from carcasses which are 
inspected and passed for food, and from the hide and offal of those 
carcasses condemned as unfit for food, should be applied as part pay- 
ment on the indemnity for their respective owners. The payment of 
indemnity for tuberculous animals is a good business policy and 
would do more toward making the tuberculin test popular with cattle 
owners than any other possible action. And as a corollary of the 
latter more testing would be performed, apxl more tuberculous cattle 
would be discovered at the start, but the gradual suppression of the 
disease would soon be manifest, as has been noted in Pennsylvania 
and Denmark. Furthermore as Stiles has mentioned, if tuberculosis 
can be eradicated from dairy herds with but slight loss to the owner, 
the increase in the price of milk would naturally be inhibited, and 
the children of poor families would consequently be in less danger of 
having this very important article of their diet decreased. 
As a result of the careful study of the tuberculin test Salmon draws 
the following conclusions: 
(1) That the tuberculin test is a wonderfully accurate method of 
determining whether an animal is affected with tuberculosis. 
(2) That by the use of tuberculin the animals diseased with tuber- 
culosis may be detected and removed from the herd, thereby eradi- 
cating the disease. 
(3) That tuberculin has no injurious effect upon healthy cattle. 
(4) That the comparatively small number of cattle which have 
aborted, suffered in health, or fallen off in condition after the tuber- 
culin test were either diseased before the test was made or were 
affected by some cause other than the tuberculin. 
ACTINOMYCOSIS. 
This disease, while not at all infrequent in the maxillary regions of 
cattle, is quite rarely located in the udder. It is readily mistaken for 
tuberculosis, owing to the diffuse lesions and the character of the pus. 
While no known case of actinomycosis in man has been traced to the 
milk, it is nevertheless advisable to condemn the milk from an 
infected udder, especially since the virus of the disease in man, in 
most cases, has been found to enter the body through the alimentary 
canal. Furthermore, there is usually in actinomycosis a mixed infec- 
tion with pus-producing cocci, which emphasizes the necessity for 
prohibiting the use of the milk from such udders. 
