[ 54- 1 3 
k y The Bladder ; and 
/, The umbilical Arteries, with the Urachus turn’d 
down, to fhew 
m y The Uterus , &c. 
n , «, Is an Artery communicating with, and enter^ 
ing into, the Aorta of each, near the going off 
of the Emulgcnts. 
o, The Heart of the fmaller Child, much too large 
in proportion, together with the right Auricle. 
p , Part of the Lungs, which were render’d much 
too fmal 1 , in proportion, by the ComprelTion of 
the large Heart upon them. 
q , The Aorta and pulmonary Artery, as they are con- 
nected by the Canalis Arter.iofus (r). 
s, t , The defeending Trunks of the Veins; the lat- 
ter of which was preternatural, running round the 
left, and entering into the right Auricle in its 
poflerior Parr. 
The other Parts were much as thofe of the for- 
mer Child in general ; except the Aorta y which was 
much fmaller, as the Figure {hews. 
XI. An Account of the Preparation and 
Ufes of the various Kinds of Pot-afh ; by 
John Mitchell M. 2). & F. R . S. 
■Read Nov. 17 and 24. A LTHO’ Pot-alb is a thing daily 
* 748 ’ y \ ufed, and well known even 
to the Vulgar ; yet, as the making it is a mechanic 
Art, praclifed only by the Vulgar, and negle&ed 
and overlooked by the Learned, fo we have had 
B b b b 2 no 
