( 'U ) 
be driven out of thefe Velfels • for all the Particles of 
Fat, that I have as yet obferv’d, areinclofed in final! 
Films. 
This Original of the Fat is to me much more 
credible, than that it Ihould be forced out of the 
Brood Velfels*, and yet how thefe fatty Particles, 
which confilf of fmall globules, and thole out of {fill 
fmaller globules (as it appears to me) are made and 
formed, I cannot as yet determine: As alfo where 
thefe VelTels, which conftitute what we call Mem- 
branes, have their beginning, and how this Fat is 
brought into them. 
I had in my Drawer a piece of OxeVflelh, that I. 
believe had lain there about four Years, wrapp’d up in 
a Paper, which Piece I found in fome places to be 
cover’d with a Membrane*, from this I cut off feveral 
fmall Slices along with the Membrane, and 1 found 
that near the Membrane, there lay about 16 or 1 8 
Nervous Fibrils, which, in the drying of the Flefh, 
were fo fqueez’d together, that they were almolf 
twice as long as they were broad. In fome of which 
I faw very didinclly thofe Velfels, which are in the 
Nerves. 
Thefe Nervous Fibrillx were enclofed by a fort of 
half round, feparating them from the Mufcular 
Fibres, which half round confided of a row of fmall 
Tendinous FibrilU , each of which was about twice 
as thick as a Hair of a Man’s Beard. Without thefe 
Tendinous FibrilU lay the Mufcular Fibres, that had' 
been cut through tranfverfiy, and in this part of the 
half round there were feveral Apertures, which 
feem’d in the Microfcope to be big enough for 
Hemp-feed to pafs through them, which might well 1 
be taken for Velfels, but that there lay fo many of 
them 
