No. 1.] ORIGIN OF HUMAN MONSTERS. 211 
No. 159. 
Fragments of a chorion about as large as a walnut. 
Dr. Golden, Elkins, W. Va. 
“From a woman in good health who had aborted a year 
before during the third month of pregnancy. During the 
second month of the pregnancy, from which the present speci- 
‘men was obtained, there was a slight flow of blood without 
any pain. It continued for two days. Ten days later it re- 
curred and continued for 24 hours. Three days later it re- 
curred again, became profuse and the abortion followed. The 
supposed duration of the pregnancy is ten weeks. No indication 
whatever of endometritis. Both father and mother are per- 
fectly healthy and are very anxious to have children.” 
The specimen consists of portions of the mucous membrane 
of the uterus, large portions of the chorion, amnion, but no 
embryo is present. The mucous membrane is full of small 
abscesses, and leucocytes have invaded all portions of the 
chorion. The syncytium is very active, and at numerous 
points the syncytium and leucocytes have invaded the meso- 
derm of the chorion. The amnion is greatly curled up and 
thickened. Its walls have undergone hyaline degeneration. 
The cells covering the amnion on the side towards the ccelom 
are generally proliferated, often forming islands. 
No. 161. 
Chorion, 50 x 25 x 25 mm.; embryo, Io mm. 
Dr. Cassidy, Baltimore. 
“Last period at the end of August. Abortion, November 
17, 1899. After missing the next period patient took medi- 
cine and had a rubber tube introduced into the uterus. Puru- 
lent leucorrhcea during the past six months.” 
The entire ovum was given me hardened in alcohol. It 
was covered with hard clots of blood; on one side the villi 
appear to be normal. Upon opening the ovum a mass meas- 
uring I0 x 5 x 5 mm. was found attached to its walls, which, 
after sectioning, proved to be a strangulated embryo. It was 
imbedded and cut into serial sections. 
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