36 
REPORTS OF CASES. 
bright green, not extending into the lung tissue. I was curious 
to see if the intra-trachea injection of eseridine had had any 
effect on membrane, so made a longitudinal incision and found 
the posterior half of the trachea of the same bright green color, 
just as if a paint brush had been taken from one end to the 
other, touching only the back half. I then dissected spinal cord, 
but could discover no abnormal condition, so that the only satis¬ 
faction I received was verifying my opinion as to no injury to 
spine; offset by a ponderous interrogation of the whole case. 
DENTAL EXOSTOSIS. 
By Frank Allen, Student . 
On the 9th of February an aged bay gelding was brought to 
the American Veterinary College for dissecting purposes and on 
the 11 th of February, when placed on the table and about to be 
destroyed his breath was found to have a most offensive odor, 
and a muco-purulent discharge was observed from the left nostril; 
he had eaten all right from the time he was brought in, but no 
previous history could be obtained. The diagnosis of a decayed 
tooth was made and on post mortem the following lesions were 
observed: 
The fourth upper molar on the left side was found loose and 
a very slight pull with the fingers brought it from the alveolus, 
which was extensively diseased and ulcerated, the mucous mem¬ 
brane and hard palate was thickened and discolored ronnd the 
diseased tooth. On making a transverse section of the skull at 
the level of the fourth molar there was noticed between the supe¬ 
rior and the turbinated bones, in the middle meatus, an irregularly 
shaped bony mass about two inches in circumference and weigh¬ 
ing between two and three ounces ; it was one and a half inches 
from the roof of the diseased molar. The pressure of this mass 
had caused necrosis and absorbtion of part of the superior turbi- 
nal and partial absorbtion of the nasal bone above it, making a 
shallow depression not noticeable from without. The septem nasi, 
on a ■ level with this mass had a circular hole the size of a fifty- 
cent piece, communicating with the right nostril, and the whole of 
the mucous membrane was thickened and congested. The bony 
