. ( 50 
fore the Microfcope, if it be not broken, one can difco-* 
vcr not theleaft Hole or Paffage in it 3 and when one of 
thefe fmall Fibres or Veifels appear to the Eye, they dif- 
appear as icon and efcape the Sight 5 partly becaufe they 
are cover’d by other Particles that lie by or near them, 
and partly becaufe they are torn from the Membrane that 
lies upon them, to which they had been before united. 
By L, M, N, O, are reprefented the little Veflels or Fi- 
bres, which by being feparated are handing out of the 
Membrane. 
Now as for thofe Vellels which are difeoyered in the 
aforelaid Membranes, it is impoffible for me to judge 
whether they are Arteries, Veins, Ladeal, or Lymphatick 
Veflels 5 for altho’ there are divers Arteries and Veins in 
Inch a thin Membrane as is here reprefented, and tho* there 
were Blood in them, yet cannot that Blood be difeover- 
ed, becaufe in fuch fine Veifels it loies its Colour 3 be- 
fides the Globules of Blood in fuch exceeding fmall Veins 
and Arteries, if they are not difiblved of themfelves, yet 
by the Expanfion of the Gut to bring it into a flat po- 
fture, they muft necelfarily bedifperfed and diflblved. 
In the faid Figure by R, R, R, R, R, and upon more 
other Places are reprefented the little Globules of Fat. 
I placed before another Microfcope a little Particle of 
the faid Gut, in which, to the beft of my Power, I had 
feparated the Membranes that lay upon one another, and 
that compofe the thicknefs of the Gut, in order to fee 
them the better. 
In Fig. 4. By A, B, C, D, E, M, P, W, a, b, c, dy 
X, Y, R, O, L, is reprefented a fmall Particle of the Gut 
(becaufe it (hould it fhould not take up too much Paper) 
. wherein none of the Parts are deferibed, becaufe it is 
only to fhewhow the Membranes are feparated from each 
other 5 the Circumference of the extreameft Membrane, 
of which, together with the Coagulation of the Blood 
upon 
