37 
Observations by Dr. E. A. Schumann upon Inter- 
esting Conditions Found in the 
Female Genital Tract. 
3193. Canada Porcupine (Erethizon dorsatus dorsatus), 
obstructed labor. This animal died from exhaustion 
due to an impossible labor. On autopsy the abdomen 
contained a moderate amount of clear serous fluid with 
one small blood clot. The right uterine cornu was 
distended with a fetus to about the same diameter as 
the uterine body. This cornu was congested and 
edematous, its walls very thin. The cornu was twisted 
one-half full turn from right to left, so that the pregnant 
portion overlaid the uterine body anteriorly. The 
torsion produced a compression of the vessels on the 
right side to the point of violent congestion of the cornua. 
There was no apparent rupture of the uterine walls, 
death having occurred from exhaustion. The fetus and 
its membrances were normal. 
3199. Aoudad {Ovis tragelaphus) , ruptured parovarian 
cyst, normal right side pregnancy. The fetus, its 
placenta and membranes showed no change. The right 
broad ligament and ovary are negative, the latter con- 
taining a red and gray corpus luteum. The left ovary 
is fibrotic and the left ligament is the seat of a large 
hematoma, which on section is found to contain thin 
sheets of gray translucent membrane-like walls of a 
cyst. The vessels are all distended. Arteries have 
stiff walls and are empty. Veins have well formed clot. 
The whole uterus and adnexa were slightly turned to 
the right, but the twist does not seem to have been 
sufficient to cause rupture of a broad ligament vessel. 
Microscopical section of the broad ligament shows a par- 
ovarian cyst into which there has been hemorrhage. 
The cyst is separated from the ovary proper by a short 
band of tissue which apparently consists of thinned-out 
ovarian cortex. 
3245. Canada Procupine (Erethizon dorsatus dorsatus). 
Acute hemorrhagic metritis. The uterus and cornua are 
