extraordinary Human Foetus . 129 
The principal deviation from the natural structure in the 
venous system of this heart, consisted in the want of the vena 
cava superior. The vena cava inferior might be said to be 
natural. It received the veins from the lower extremities, 
from one kidney, &c. and also the branches of the venae cavae 
hepaticae, which did not terminate in the opposite heart. It 
received also a ductus venosus from the umbilical vein. The 
only remaining circumstances with respect to the distribution 
of the blood vessels, were two very large anastomoses be- 
tween the branches of the vena portarum ; and a remarkable 
branch of communication, between the lower part of the vena 
cava inferior of the right heart, and the vena cava superior of 
the left heart. This communicating vessel was detached from 
the vena cava inferior, opposite to the right emulgent vein, 
and, having crossed over the anterior part of the aorta, below 
the origin of the caeliac artery, received the left emulgent 
vein. It then proceeded upwards, and terminated in the vena 
cava superior. Although this vessel was situated on the left side 
of the aorta, it probably served the office of the vena azygos. 
Although I have already noticed several instances of curious 
conformation, that of the organs of generation was in some 
respects the most remarkable. From the features of the two 
heads I was led to expect both male and female parts, as the 
countenances clearly expressed the two sexes. In these or- 
gans the male character was predominant ; the penis was of 
good size : the testes in the act of passing into the scrotum : the 
vesiculae seminales were perfect and well formed. Still these 
parts partook in some measure, of the conformation of the 
female organs. The glans penis was formed precisely like 
that of the clitoris ; was covered by a similar prepuce, without 
mdcccx. S 
