28 
A Description of all the 
Tab. VII. 
on applying the microfcope in like mariner to the fat, not only of man, but of 
other animals, that it is every where contained in fpherical bags, painted with 
velTels refembling in lize, as well as in ftrudure, thofe of the marrow ; none of 
which in diameter exceed the fix -hundredth part of an inch, nor are lefs than 
one eight-hundredth part of it (y“). Holes in the fides of thefebags, or dud:s 
leading from them and connecting them to each other, are not diftinguilhable, 
even with a microfcope of high powers. In the hope of difcove|j.ng more 
fully the texture of the adipofe follicles, I have repeatedly examined with the 
microfcope the texture of large fteatoms ; in which I was a good deal furprifed 
to find the follicles not only as regularly lhaped, but nearly as minute as thofe 
of the fat in a found ftate; Nay, I have often in the fame perfon compared the 
fat of the found cellular texture with that of a fteatom, without being able to 
perceive any difference. I have, befides, tried the experiment of holding a thin 
portion of fat between my finger and thumb, dipped into water heated to 
above a hundred degrees of Farenheit’s fcale, and preffing it gently, without 
finding that the adipofe follicles can by moderate preffure be emptied or made 
flat ; and globules of oil are not diftinguifhable, even with the microfcope, in 
tlie liquors taken from the abdomen, joints, and burfae. 
He NCE fome may perhaps infer, that there are no holes or duds leading 
from them of confiderable fize. At the fame time, from the oilinefs which 
the furface of the fkin, efpecially in the negro, gets after exercife ; from find- 
ing that the crufts, procured by evaporating thefe liquors to drynefs, are inflam- 
able ; from the greafy feel of the omentum, ox of the appendices epiploicse 
of the colon even in a living animal ; from the fhortnefs of the omentum in 
mail, compared with the great length of it in the quadruped, which we cannot 
account for in any other way, than that the body of the one animal was intended 
to be ered, and that of the other horizontal; and, in the laft place, as we 
fcarcely can fuppofe that thefe fatty bodies in the joints and burfae and the 
omenta, ferve merely as cuftiions for the defence of the fecerning velTels, and 
therefore cannot point out any other material ufe for the omentum and thefe 
3 fatty 
(/) See Tab. IX. fig. 19. ao. 
s 
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