150 
REPORTS OF CASES. 
fluctuating, devoid of hair and painless. No heat w as notice¬ 
able, but the hair around the forehead had an untidy appeal - 
ance owing to a gluey fluid discharged fiom a small opening i 
on the edge of the concha. The opening communicated with 
the interior of the tumor. By manipulation I detected a hard 
substance at the bottom of the enlargement, which I opened 
by a free incision. 1 now saw the crown of a perfectly de¬ 
veloped molar tooth, which it took considerable effort to dis-. 
lodge. When the tooth did come out it had attached to it, 
just above the root, a tough membrane, which I dissected out 
carefully, following it to the opening in the edge of the ear.| 
The wound, after being well cleaned, was dressed antisepti- 
cally and has healed nicely. 
Not so with the colt operated on two } ears ago. The! 
wound is healed all but a small opening, large enough to ad¬ 
mit a fine knitting-needle, which is discharging occasionally a 
drop of a honey-like substance, so slight in quantity that it isj 
hardly noticeable from day to day, and the owner does not 
care to have it interfered with. 
In the Veterinarian for 1874 is printed a paper by Prof. 
Fleming on Dental Cysts, and he says that it happens that 
the bottom of a cyst does not cicatrize after the extraction of I 
a tooth and that this is a sure indication that anothei tooth is 
forming. 
Macraps was compelled to operate twice within thieej 
months and in i860, when he made his report, it is probable a 
third tooth was forming, as the fistula had not closed then. 
Perhaps this yearling colt will prove to be developing an¬ 
other tooth, although I can feel no enlargement yet. . _ j 
In my veterinary literature I find every case of this kindj 
recorded as referring to the horse except in one case, wherd 
an incisor tooth was found in a fistulous tract near the right 
ear of a ten weeks old lamb. Bur I see no reason why.othei 
animals might not develop dental cysts. A number of oase| 
in the human race have been recorded. 
