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of a communication of the umbilical vein with the 
trunk, d. of the vena cava of the fcetus. 
1. In every foetus the umbilical vein empties itfelf 
into the vena-cava in the liver; therefore nature hath 
here followed her ufual courfe. 
2. With regard to the arterial trunk, e. it is clofe 
by the divifion, g. of the Iliac vein, whence it is 
very likely that it was the left iliac vein which was 
divided. 
This laft, and above all ftriking reafon, made me 
employ almoft a whole morning, in looking over and 
over this left iliac region, to difcover the divided 
veffel, which would have put the whole matter out 
of difpute ; but I could find no trace or appearance 
of it. All the veflels communicating with the left 
umbilical vein appeared very intire, though deprived 
of part of their ramifications by which the air 
efcaped, but all grew in their courfe lefs and lefs in 
diameter. Which thenr was the origin of this 
left umbilical artery ? doutlefs the branches of the 
trunk, f. of the aorta , which were numberlefs in 
the pelvis , but had partly been fpoiled the preceeding 
night, in diffeding the reffium , uterus , and blad- 
der of this monfter. I add, that this trunk, e. was 
joined to fome membranes, which we were obliged 
to pull about, in order to make it turn to the left, and 
this diredion appeared not to be its natural pofition. 
Be it granted, for a moment, that, e. is the left 
iliac, and that the umbilical vein joins it at, d. ; how 
could the blood circulate in this foetus ? How could 
it have lived the nine months r d. is evidently a 
trunk of the cava, which generally enters the right 
auricle of the heart, dividing, like this, into the 
7 cava 
