30 
W. H. BIRCHMORE. 
discharge of a gun. The canine tooth on the lower jaw, right 
side, was so loosened as to be disengaged by very gentle hand¬ 
ling. Ulceration of the socket followed, and after a considerable 
period a tumor grew, whose size made the dog so miserable that 
he was allowed to die. The microscope sections thence obtained 
might have served as originals for the drawings of osteo-sarcomas 
shown in the books. 
The next four cases of which I have memoranda were in 
horses and mules, the result of injuries from the abuse of bits. 
In one of them there was an exostosis, or else a sub mucous 
thickening of the roof of the mouth. The animals were other¬ 
wise in good condition. 
My next was a large, mixed spindle- and round-celled sar¬ 
coma from the lower lip of a mule, caused by the irritation of 
the bit. 
Case X.—A papilloma, irritated by the rubbing of the bridle 
behind the ear of a horse, became ulcerated. I removed it and 
obtained some excellent sections of a connective-tissue tumor, 
with nests of pseudo-epithelial cells. 
Case XI.—Last spring, while visiting a patient, I learned 
that one of his cows was “ snake-bit.” Investigation showed an 
ulcerated mass on the udder that macro- and microscopically 
answered to a nodulated mammary cancer. 
A case of a gastric tumor in a pig was offered at the Chicago 
meeting of the American Society of Microscopists. 
Epithelial tumors at the point of the shoulders in abused 
horses are not very scarce. 
Engorgement of the lymphatics of the base of the tongue 
following wounds that healed by leaving an indurated cicatrix 
have passed under my notice; also one case of a lump, of the 
size of a fist, that formed about the parts pressed against by a 
ring in a bull’s nose. There was nothing destructive about this 
tumor, but its evident inflammatory character renders it worth 
mentioning. 
Villous tumors of the intestine are not infrequently found in 
hogs. 
® ^ 
The fact that lymphatics may swell and become indurated in 
