[ 212 ] 
It is partly owing to the eafe with which thofe 
veffels may be feen, after difcovering where their 
larger branches lie, that I have not added a figure of 
this fyftem in a fifli. Indeed it would be almoft impof- 
fible to exprefs all its parts in one figure, from the 
numerous and intricate communications of thofe vef- 
fels near their termination in the common veins. But 
1 have laid before the R. Society a haddock with its 
lymphatics and its blood-velTels filled with coloured 
injedions, to be compared with the defcription. And' 
thofe that are defirous of profecuting this fubjed fur- 
ther will, I flatter myfelf, find it an eafy matter to 
fill the whole fyftem, by attending to what I have 
faid above. 
. I fhall beg leave to add one obfervation more ; and 
that is with refped to the diftribution of the ladeals 
on the wY// (as they are called) of the inteftines. 
From a variety of experiments, which I have made, 
I am perfuaded, that in animals, in general, each of 
the villi is compofed of a net-work of ladeal veffels, 
as well as of a net- work of arteries and veins. The 
very ingenious Dr. Lieberkiihn has endeavoured to 
(hew, that in the human fubjed each ladeal forms an 
ampullula or oviform veficle, which is filled with a 
fpongy fubftance. But from having injeded thofe 
veffels, with mercury, in fifti, turtle, and birds, I can 
clearly demonftrate that each of the villi of thefc , 
animals has a net- work of ladeals, and not an am^ 
pullula or oviform bag. And from comparing thefe 
obfervations with Dr. Liebcrkiihn’s experiments, I am 
inclined to believe the ftrudure is fimilar in the hu- 
man fubjed. But as propofing my arguments at prc- 
fent would not be altogether agreeable to the defign 
