L 76 ] 
they approach the Extremity, and growing again & 
little more narrow, terminate in ragged Fimbria. 
XHI. 
The Cavity of each is alfo fo fmall at their Ori- 
gin in the Angies of the Womb, that a fmall Hog's 
Brittle can hardly be introduced ; but it enlarges gra- 
dually, till, at the other Extremity, it is capable of 
admitting the End of a Goofe-Quill*. 
XIY. 
Thefe Tubes are in a ftrait Dire&ion for a little 
Way (from the Uterus 5 but as they enlarge, they 
grow into vermicular Curves or Flexures, terminating 
downwards, and a little backward, with their Mouths 
opening upon the Qvarza, altho’ not at all attached 
to them 5 and are fuftained and ftrengthened by their 
Situation in the Duplicatures of the Teritonaum on 
each Side, which ferves to keep them in their curved 
State (as the Mefentery fuftains the Guts) during the 
unimpregnated State of the Uterus: And thefe Dupli- 
catures (which alfo ftrengthen, and in fome mea- 
fure cloathe, the Ligamenta rotunda , and which we 
fhall fpeak to prefently) are what are commonly 
called the Ala Vefpertilionis . 
XV.- 
Thefe Tubes are made up of mufcular Fibres, 
which are partly longitudinal, and partly are fituated 
obliquely, and fomewhat circular ; from which Stru- 
cture they have a Motion which may be called a 
compound Motion, and which amounts to what we 
count 
