i 6q Dr, Clarke’s Description of an extraordinary 
form able to the general wisdom of nature to give that which, 
in such a situation, must be useless. 
The whole growth then, and formation of a foetal body, 
would seem to depend upon the actions of the vascular ap- 
paratus, which, if we may be permitted to judge from this 
instance, is fully equal to the task. 
With regard to the manner in which this monster was 
supplied with nourishment, and with the benefit of air, there 
is nothing remarkable ; because it had a placenta, and the 
circulation between it and the mother was the same as in 
the most perfect foetus. 
Tab. XVII. and XVIII, 
Exhibit the appearances described in the foregoing paper. 
Tab. XVII. A view of the external appearances. 
A. An imperfect formation of a foot, with four toes upon it. 
B. An imperfect formation of another foot, having three 
toes upon it. This foot was connected to the tibia and 
fibula. 
C. The projection into which a duct led, terminating in a 
blind pouch. 
D. The funis umbilicalis. 
E. An imperfect formation of a finger. 
Tab. XVIII. An internal view of the parts, as they appeared 
after clearing away the fleshy matter from the bones. 
A. The os innominatum. 
B. The os femoris. 
