AMERICAN VETERINARY COLLEGE. 
121 
In the upper jaw the incisors were very long. The right 
nipper inclined toward the left side, and at its free extremity was 
in apposition with the left divider. The left nipper had evidently 
been broken off, but this abnormal deviation completed the 
grinding surface. Part of the anterior face of the left nipper re¬ 
mained, thus filling up the triangular space between the right 
nipper and left divider. At the base of the right nipper was 
what appeared to be a rudimentary tooth, but this was evidently 
nothing more than a fragment of the tooth which had been broken 
lengthwise. The left divider and right corner tooth presented 
nothing peculiar, except their great length. The left divider was 
broken off short, the root remaining in the alveola cavity. 
AMERICAN VETERINARY COLLEGE. 
HOSPITAL RECORDS. 
By Fred. Saunders, D.V.S., House Surgeon. 
TRUE DISLOCATION OF THE LEFT PATELLA. 
On the 29th of April, a large brown gelding was brought to 
the hospital in the ambulance of the Society for the Prevention 
of Cruelty to Animals. The history of his present condition was 
that he had been in that condition for over forty-eight hours, 
with the stifle out. He was recognized as a patient who had 
already been brought under the observation of the House Sur¬ 
geons for a similar trouble, which had readily subsided by itself, 
and not returned since. 
This time, however, with all the symptoms of that lesion, the 
peculiar extended condition of the left hind leg, the impossibility 
of flexion and the interfered action, the diagnosis was easily 
made of dislocation of the patella. The animal was with diffi¬ 
culty placed in a box stall. After hard manipulation of the parts 
and attempts at reduction, the bone was slipped into position, and 
the animal freed from his trouble. In about an hour, by the ac¬ 
tion of the animal in turning on the left leg, the same condition 
returned, to disappear again upon the usual manipulations. This 
