ADDRESS OF DR. C. B. ORVIS. 
195 
of tuberculosis, except the febrile reaction after injection ? And 
why, also, prevent their breeding ? The great majority of such 
cows are only affected in a very slight degree ; a good many of 
them have only some small nodules in the lymphatic glands, 
and there is no reason to believe that tuberculosis would rapidly 
develop in such animals. Frequently enough the disease re¬ 
mains limited fot years, and in some it is even possible for re¬ 
covery to take place ; at least I have very often found small and 
perfectly calcified tubercular deposits in aged cows. Such cows 
might give birth for years to absolutely healthy calves. I am 
inclined to attribute to direct heredity—that is, contagion from 
mother to foetus—a larger share in the propagation of tubercu¬ 
losis than Nocard does. Up to the present time I have exam¬ 
ined twenty cases of tuberculosis in the foetus and twenty newly- 
born calves, but the disease is never transmitted to the foetus 
unless the mother is in a very advanced stage of the disease— 
probably always generalized. When the cow is only slightly 
affected, the calf is always born healthy. 
“ I am, therefore, of opinion that all the tuberculous cows, 
apparently healthy, should be kept and allowed to breed ; but, 
at the same time, they ought to be well separated from healthy 
animals, and their calves should be removed from the infected 
sheds immediately after their birth.” Vety. Mag., Dec., 1894, 
P- 779 -) 
Again, Nocard, one of the best known veterinarians in 
Europe, does not believe it necessary to destroy them, but says: 
“ They may be fattened and fed for beef.” 
( To be continued.) 
ADDRESS OF DR. G. B. ORVIS, 
President of the California State Veterinary Medical Association. 
— 
| GENTLEMEN : In assuming the presidential chair of this asso¬ 
ciation for the ensuing year, permit me to thank you most sin¬ 
cerely for the honor you have conferred upon me. By being 
