(1044) 
Graiff ( If we miftake him not ^ yet if it (Ball appe are J that 
they are really made up of veffels, thougb of never fo many 
rforts, I humbly conceive you will not think the Experiment 
loft, becaufe I fuppofe the chie[ thing intended by thefe trials 
tobe, that it may be well known, what indeed the Boiyof 
the Tejles is made of • Whether indeed it be a CoKgeries ot Vef- 
fels dad Liquors without any intermediate fubftance , as was 
sflmedby me to many of this Honorable Company, feveral 
years agoe , concei ning moft if not ali parencSymous parts, 
which was iftfertedia Namb. i8 of the P/?. Tranfactionsi fince 
which time I have made fcver^i Experiments of* tne famt kind, 
about the Tefles , the Pancreas , and other fo eftecm'd Glands * 
sndas fjr as I have examined them 5 I find ihem to be only a 
Texture of fine Tubes or dufts, with mere orlefs liquor, with- 
out any ociier fubftancf'. 
B'lt perceiving , the T tflcs of feveral Animals to be varioufj 
compofed and inttrtext-, l^xocttd^d adTefliedos Tmri^whi.h 
I have difftdei and ordered feveral wayes . fome boyled, o- 
ihers broiled, others infufed in Spirit of wine, hot and cold; 
C^r. and upon th: beft examination, I can m ike , I cannot fee 
any of this intermediate fubftmce, or indeed any thing elfe, 
that is not Veffcl or Liquor, 
Now in obsdimce to your cominds, I ha^ve added another 
Experiment, ind that is tediculi humanly (the exadi knowledge 
of whofe fabrick wis fuppofe to be chiefly aimed at in this kini 
oflnqu'ry,) hoping to prove it clearly , and perhaps to put it 
outof difpute ^ That it is nothing e'fe \ ^x'.^ Conger its of Vef- 
fds of various forts , and their fiivsral Liquors; and thit there 
isnofuch thing as an intermediate fubftance (by what Bamefo- 
ever it be call'd •,) And to demonft ate this, I think, it will evi- 
dently appcrare to the bare Eye , by what 
see Fig. i. vphfcbrepfe- I have here expanded, which is the 
fr "If;:;';^^^:^ true genu fubftance TefiicuH hnm^m, 
of the fme teitis after the I mean, tne Bjdy of it 5 after the Tu- 
m4/2«er mth this on ^-^^ aWuginca IS temov'd, without any 
addition or diminut on , excepting only 
what Liquors aredryed up during thetim.e of the Expanfian, 
which coludnot be prevented in making fuch a S cheme of it ^ 
as 
