406 ESSAYS ann OBSERVATIONS 
ing the finger alternately upwards and down- 
wards, fo much of this fubftance was fepa- 
rated from the womb, as to allow a probe- 
pointed pair of {ciffars to be introduced for 
enlarging the incifion, parallel with the fide 
of the uterus. I then faw that this fubftance 
was a villous membrane, which feparated al- 
moft of itfelf from the cut fides of the womb 
when we attempted to raife them. In doing 
of this, we could not obferve any tearing of 
veffels or fibres, except in fome places where 
fmall convoluted arteries were broke off from 
the forepart of the uterus to adhere to this 
villous membrane. Jn this manner, this 
outer /amella of the chorion was every where 
feparated from the forepart of the wserus, 
which was cut thro’ with a pair of {ciflars all 
around its fundus and edges, as low down as 
the offa pubis, and was turned down over thefe 
bones. 
THE wterus was, as near as I could judge, 
about the thicknefs of an unimpregnated onez 
fome of the gentlemen who were prefent at 
the difletion, thought it was thicker, and o- 
thers, that it was thinner. 
Tue fubftance of the womb was compo- 
fed of its firm ftrong outer membrane which 
is 
