[ 200 3 
Thefe lafl can be traced downwards almoft to tb.e 
anusy and belong to the parts fituated below tlie me- 
lcnte[y, and .particularly to the kidneys. At the 
root of the mefentery, on the left fide of the fpine, 
the lymphatics of the fpleen join the ladlcals, and 
immediately above this union a fort oi plexuSy or net- 
v/ork, is formed, which lies upon the right aorta (for 
there are two aortce in this animal). From this 
plexus a large branch arifes, which pafies behind the 
right aorta to the left fide, and gets before the left 
aorta, where it afiifis in forming a very large recepta- 
culumy which lies upon that artery. From this recep- 
taciilum arife the thoracic dudfs. From its right 
fide goes one trunk, which is joined by that large 
branch which came from the plexus to the left fide of 
the right aorta, and then pafies over the fpine. This 
trunk is the thoracic dud: of the right fide ; for, hav- 
ing got to the right fide of the fpine, it runs upwards 
on the infide of the right aorta, towards the right fub- 
clavian vein. And when it has advanced a little 
above the lungs, or within three or four inches of the 
fubclavian vein, it divides into branches, which, near 
the fame place, are joined by a large branch that 
comes up on the outfide of the aorta. From this part 
upwards thofe vefTels divide and fub-divide, and are 
afterwards joined by the lymphatics of the neck, which 
likewife divide into branches before they join thofe 
from below ; fo that between the thoracic dud and 
the lymphatics of the fame fide of the neck a very 
intricate net-work is formed. From this net- 
work a branch goes into the angle made by the ju- 
gular vein and the lower part or trunk of the fubcla- 
vian : this branch, therefore, lies on the infide of the 
jugular, 
