[ 74 3 
fhortened, as to acquire a greater Thinnefs than 
the Parietes of the Uterus , and confequently to bring 
both Orifices into one. 
IX. 
By this time the Foetus being come to Perfedion, 
and the Refiftance being lefs at this Orifice than at 
the other Parts: The Uterus now begins to ad in its 
trmfcular Capacity, beginning by degrees to contrad 
itfelf alternately, till the Waters and Foetus are de- 
termined downwards to the Orifice ; which, the inore 
it dilates, the more Power the Uterus ftill acquires, 
by its natural Difpofition to contrad* until the Muf- 
cles of the Abdomen are at length drawn into Con- 
fent, and the Conatus, or Pains, as Women call them, 
which begin by the involuntary Motion of the Uterus 7 
are aflifted by the voluntary Contradion of the ab- 
dominal and other Mufcles towards the Extrufion of 
what it contains *. 
X. 
Nor does the Uterus reft, after it is rid of every- 
thing, but ftill continues alternately to contrad j 
until, in fome Days fooner or later, it has fqueezed 
out the Fluids from the Blood -veftels, called Lochia p 
comprefied them clofe, and at length acquir’d its for- 
mer Size and Gompadnefs, or very near it. This is 
what 
* This regards the natural Delivery of a Woman in due time.. As 
to what relates to Abortions at different Times, it is a Subjed re- 
ferred for another Place. 
