38 
in their normal positions. The upper segment of the 
uterine body and cornua were swollen, soft and deep 
purple. On section the myometrium was found hem- 
orrhagic throughout its entire extent, and there was a 
small amount of grayish exudate in the uterine cavity. 
The lower uterine segment and vagina were normal. 
Two quills were found rather firmly imbedded in the 
wall of the uterus and in the areolar tissue of the recto- 
uterine space. They were not surrounded by dense 
fibrous tissue nor did any evidence of acute inflammation 
extend from them to the uterus. Microscopically the 
entire uterine wall showed intense hemorrhage. The 
muscle layers are separated by blood clot and the utri- 
cular glands in many cases are filled with hemorrhagic 
debris. There is a moderate round cell infiltrate through- 
out. 
3281. Canada Porcupine (Erethizon dorsatus dorsatus). 
Ulcerative metritis with extension to peritoneum. The 
right cornu showed opacity and stickiness of the serosa 
and a fusiform swelling about midway of its length. 
Upon opening an ulcerative endometritis and boggy 
swelling of the muscularis are found. The serosa is 
slightly adherent to a part of the mesentery and in the 
neighborhood but not at the attachment of those adhe- 
sions are masses of caseous exudate where the mesentery 
joins the gut. Microscopically the uterus is the seat of 
ulcerative endometritis and metritis. Scattered through- 
out the endometrium are deep layers of ulceration with 
small areas of necrosis which extend well into the muscle. 
The entire myometrium showed marked round cell in- 
filtration with few small hemorrhages. The utricular 
glands have mostly been destroyed by the ulcerative 
process. 
3283. CsnpeHyrsiX (Hy rax capensis). Impossible labor 
due to malformation of the pelvis. This animal died as 
the result of shock and exhaustion of labor. She was 
pregnant of two fetuses, one of which was extracted 
manually by the keeper, but was dead at birth. Twenty- 
four hours later the animal was found dead. On autopsy 
