36 
ward. The pubes and symphysis are fairly normal. 
The pelvic measurements are: diagonal conjugate 6 cm, 
true conjugate 4 cm, greatest transverse 4 cm. It is 
apparent at a glance that here was an impossible labor, 
since the head of the fetus could not possibly enter the 
pelvis the size of w^hich intra vitam must have been less 
than the above measurements by reason of the soft 
parts. This is, in the experience of the writer, an unique 
case of complete obstetric history, plus the specimens, 
of labor with an osteomalacic pelvis in a wild animal. 
Labor complicated by rupture of the vagina in a 
Camel {Camelus hactrianus No. 2551) which died of 
shock in labor at the Zoological Garden. Upon autopsy 
the animal was found to have hydatid disease of the 
liver, lungs and spleen, cirrhosis of the liver and neph- 
rolithiasis. Protuding from the vulva was a portion 
of the fetal membranes, the whole vaginal wall and 
several coils of intestine which had escaped through a 
large rent in the posterior vaginal wall. The anterior 
wall was swollen and edematous, the whole region sur- 
rounded by clotted blood. The cervix was obliterated, 
the membranes umuptured, the fetus in the normal 
extended head presentation. The veil-like placenta 
was somewhat injected but otherwise normal. There 
was some hemorrhage about the rectum but none in 
the free peritoneum. This animal had broken her hind 
leg just above the fetlock three weeks before falling into 
labor, and was unable to stand. It is evident that the 
difficulty of delivery associated with an unnatural and 
forced posture due to the fractured leg was sufficient 
cause for the rupture of the vagina where the tissues 
were degenerated as a result of the coincident general 
disease. 
Labor complicated by inversion of the uterus and 
vagina. A Japanese Waltzing Mouse (Mus wagnerii rotans) 
No. 3024, died a few hours after an uneventful labor. 
On autopsy the entire uterus was found inverted and 
prolapsed, the organ the seat of a violent congestion, 
the animal having died of shock. 
