624 
SINGULAR CASE OF ULCERATIVE DISEASE OF 
THE REGIONS OF THE GUTTURAL POUCH 
AND FAUCES. 
By the Same. 
December 22d. — The subject of this case was a brown 
mare, 4 years old. 
Symptoms . — A quick and weak pulse ; breathing laboured ; 
great swelling of the right cheek; inability to grind her food, 
and when drinking the water came back through her nostrils. 
Her head was held in a pendulous position, and there was 
much depression of the vital powers. She had been in this 
state for several days before being seen by me. 
24th. — Much swelling of the poll and right ear has come 
on, and several small abscesses have broken out on the cheek, 
ear, and poll, which discharge a highly offensive matter. 
25th. — In addition to the other symptoms, the breathing 
has become very quick. The pulse numbers 100. The 
Schneiderian membrane is of black colour, and an offensive 
discharge also comes from the right nostril. 
26th. — Death terminated her sufferings this day. On a 
post-mortem examination, the Schneiderian membrane was 
found in a gangrenous condition, and several small abscesses 
existed contiguous to the maxillary bone. The bone also was 
very thin, and between its plates, a collection of dark coloured 
pus was found. A large abscess was situated near to the 
root of the tongue, and another existed between the os 
hyoides and the larynx. The mucous membrane of the 
fauces, larynx, and pharynx, was engorged with blood, 
softened and ulcerated in places. The Eustachian tubes and 
the frontal sinuses were similarly affected. Ulceration of 
both the external and internal ear existed, and several col- 
lections of similar coloured pus had taken place in the 
adjacent parts. The muscles attached to the occipital bone, 
and also the cervical ligament, were extensively diseased. 
Between the atlas and the occiput a large quantity of earthy 
deposit was present, a part of which firmly adhered to the 
bones. The theca vertebralis at its upper part was thickened, 
and between it and the bone a quantity of black purulent 
matter was pent up. The membranes of the brain were 
gorged with blood throughout, and near to the origin of the 
fifth pair of nerves, involving a part of the tentorium, was a 
similar collection of dark-coloured matter. A quantity of 
black matter was also present at the bottom of the right 
