( 845 ) 
F th^ Cervix oi tbiQ All af^tofS' 
G a Hole at the Fundus ot the AUantok, whence the 
Urine came forth, and where tht Allantok was blown 
up. 
H Part of that half of the Allantok, which lies under 
the Line of Union^ and immediately covered the Foetus 
unlefs it is fuppofed that the Amnios is continued under 
the AlUntois* 
II Two Stiles OT Probes thruft under the Amnios. 
They fupport the Al/antois^ and keep open the Apertare^ 
•k-^ -k-k of the Amnios, whence the Tmns c^mc forth. 
K Part of the Placenta, with fome Blood- Velfels in- 
jefted. 
LLLL th^ Arteries of the Navel-firing filled with 
Red Wax. 
M M The Umbilical Veins filled with Green Wax. 
N a Communicant Artery, by means of which all the 
Arteries ot both Navel-firings were filled at once, and 
the Veins were filled by one Injedion in like manner. 
O a Pin that keeps out the Amnios^ where from the 
edge of the Placenta it runs partly to the Line oiZ)nion^ 
or Adhdefion, and partly over the Placenta. 
P Part of the GmV;/ at the edge of the Placenta^ 
where it runs under the Amnios on the Placenta, 
Q a Pin that by a thread helps to pull open ih^ Aper- 
ture of the Amnios. 
R R R the Urachm, lying between the Arteries. 
a a a a Fibres or Veffels which faften the Allantois to 
the Chorion. 
Fig. IL 
Exhibits a fide-view of the fame Preparation, that the 
Infertion of the TJrachus\ &c. may be better feen. 
ZsT. B, That A and all the fame Letters in thefe three 
Figures denote the fame Parts in every one. 
S (hews the Courfe of the Vrachus R at F in pricked 
Jines. 
Srfff2 ' Tparr 
