U. S. VETERINARY MEDICAL ASSOCIATION. 
441 
same results produced twelve months previous to Koch’s making 
his statement in regard to that, held in abeyance the activity of 
the virus. 
Dr. Liautard: I may add to that statement made by Dr. 
Winchester that in the statement made before the Academy of 
Medicine in Paris, it is claimed that by inoculation they had 
so far obtained these results that animals which had been inoculated 
with the strongest virus of tuberculosis, had been kept after the 
inoculation for a number of months free from the disease, while 
others which were vaccinated had died in a very short time. 
Dr. Salmon: I think these gentlemen were working on en¬ 
tirely different subjects. It seems to me what I have seen of the 
article, although they are both written in such a way as to mystify, 
that Dr. Koch had been working in one direction and the French 
have been working with some substance to produce immunity. 
I judge that they had been working with some materials 
in which the bacilli had grown, while Koch states in his paper 
that he has discovered a substance which, given to the animal, 
prevents the further growth of the germ in its tissues. All the 
indications are that these investigators have been working on dif¬ 
ferent lines. Most of them have failed in producing what they 
claim to at present, but their investigations will be of benefit to 
the medical world. 
Dr. Clement: In quoting from the article, I simply made the 
statement that Dr. Koch said he had found the substance. He 
did not describe it and he was not prepared to say just at present 
what it was. 
President Huidekoper : The next subject for discussion is the 
report of the Special College Committee. 
Dr. Lyford : I will say that I have received another letter from 
the Hew York College, in which they report progress. I might 
say that I have received letters from all the colleges except the 
Chicago College, and each of them so far are not only willing but 
apparently glad to enter into the three years course, and none of 
them find fault with the preliminary examination. Thus far the 
reports are quite encouraging. 1 have not made a report of the 
agricultural schools, or consulted them, as I thought that would 
