12 Sir Everard Home’s account of the circulation , &c.. 
the skin of the back, which is turned aside, exposing the sto- 
mach and intestine upon which the artery lies, 
aaa. The artery in which the blood has its course towards 
the head. 
bbb. The five lateral canals, by which it communicates with 
the vein on the belly. These are inclosed as it were in sepa-? 
rate cells. 
cc. CEsophagus, 
d. Crop. 
e. Gizzard. 
fff. The intestine made to put on a loculated appearance 
by transverse bands, which fix it in its situation. 
gg. Ova. 
hhhh. The organs of aeration, consisting of cells, with 
openings through the external skin. 
