( ?8 ) 
and F are to be feen the little Membranes which incompafs 
the FibrilU, which are here torn afunder. 
I have frequently, with pleafure, obferved thefe Flelh-fibres 
lengthways, to be as it were corrugated or wrinkled, which I 
imagined to be the Reprefentation of their Reft or unbent 
Pofture ; and yet more, when the Part to which they belong 
is bowed together, or brought nearer ; but when the Mufcle 
is extended, and its Antagonift atfts, there is not the lead 
wrinkle obfervable in thele FibrilU. 
However, all the little Inequalities in thefe FibrilU muft 
not betaken for thofe Corrugations, fince many of them are 
only the! articles torn off from the Membranes which encom- 
pafs the FibrilU . 
Figure (7) G • H. / K. reprefents four little Fibres of a piece 
of Whales-Fiefh ! had procured two Years fince ; this I caufed 
to be drawn to (hew the difference. By the two Figures 6 and 
7, is vifible the Diameters of the Fibres are as big again in 
one, as in -the other, therefore the Fibres muft be four times as 
big in Figi 6. as in Fig. 7. Now each Flelli -fibre being compofed 
of a great many fmaller FibrilU., we may imagine each of thefe 
in lying Fibres do likewife confift of others of the like Nature. 
I have a-frefh viewed feveral final! Fibres of Ox-FJefli, and 
obferved, that each of the FibrilU in them was encompafled 
with a thin Membrane. But I cannot iliew thefe Membranes 
fo clearly to other Perfons in Cows-Flefh, as in Whales-Flefhy 
becaufe the Farts of the former are of a much more compadb 
and clofe Texture than that of the Whale, from whence they da 
notfhrink fo much in drying, 
I am of Opinion, that what I have Raid of the Membranes- 
fencompaflingthe Fibres and FibrilU ) of the Flefh in a Whale,, 
will likewife hold true in other kinds of Flelli ,* yea even* 
down to that of a Rat or a Moufe.- Concerning which I fball 
profecute-my Obfer.vations. I conclude, &c.. 
To 
