626 
REPORTS OF CASES. 
have resisted hog cJiolera and infectious pneumoenteritis without 
losing their immunity against swine plague. 
2d. A rabbit vaccinated against hog cholera has resisted 
pneumoenteritis and swine plague. 
3d. Two rabbits vaccinated against infectious pneumoen¬ 
teritis have died, one in two and a half days of the injection 
of virulent culture of swine plague (the witness in 17J hours), 
the other four and a half days after the inoculation of hog 
cholera , while the witness died in eighteen hours. Besides, the 
two rabbits presented at the post mortem, the lesions described 
above in animals insufficiently vaccinated and having died by 
the test injection. 
4th. A dog vaccinated against swine plague has resisted the 
injection of strong doses of virus of pneumoenteritis and of 
hog cholera. 
The experiments reported in this chapter allow us to con¬ 
clude to the identification of the three viruses of swine plague , 
hog cholera and infectious pneumoenteritis of swine. 
(To be continued .) 
REPORTS OF CASES, 
OSTEO CHONDROMA. 
By Dr. E. N. Kinnell, M.R.C.V.S., Pittsfield, Mass. 
By mail I have sent you a bottle containing a pathologi¬ 
cal specimen taken from a fine-bred colt, a yearling, with his¬ 
tory as follows: 
Head below eyes has always appeared clubby and full. 
Three months ago colt commenced to lose flesh and spirits, 
and a week ago was noticed to make a snuffling noise in 
breathing. This is when I saw him for the first time. 
I found him thin, appetite capricious, bulging of the bones 
of the face from level of eyes down to inferior edge of su¬ 
perior maxillary bones, bulging most pronouced on right 
side; on pressure with thumb over maxillary sinuses a 
slightly yielding or springing condition could be detected. 
