I 
'■ V 
I42 Of the Mufcular Fibres &f Animats . 
they appeared to him, like Strings of Pearls % 
and, very lately, by Dr. Alex. Stuart, 
in his learned and ingenious Treatife de Ma¬ 
in Mufculorum j where, from fuch a. Struc¬ 
ture, and by the Influx of the nervous Fluid, 
he accounts, very reafonably, for the elaflic 
Force, the Contraction, the Difienfion, and 
all the Actions of the Mufcles *. But as 
thefe Gentlemen differ fomewhat in the Fi¬ 
gure of the little Veficles fuppofed to make 
up the mufcular Fibres, the Curious will do 
Well to examine, with the Microfcope , into 
this Matter, as carefully as poflible • and 
that by contriving all the Ways they can 
think of to view' the Fibres in living Ani¬ 
mals. For, whatever Form the VeiTels may 
have when replete with a nervous or other 
Fluid, I am afraid, when the Fibres have 
been dried, or the Veffels collapfe together 
by not being fupplied with fuch Fluid, the 
true Form and Structure of them can never 
be fully known* 
Our Obfervations, it is probable, may be 
made with mofl Succefs on Infe&s ; their 
flefhy Fibres, as Mr. Leeuwenhoek tells 
us, being no lefs vifible than thofe of larger 
Creatures : which he found by cutting off 
and examining the flefhy Parts of the Legs 
©f Flies, Gnats , Ants *f, &c. in all which he 
* Vid> Gortejl de Fabrka & Moiu Mufculpr . Stuart 
d'g Mot a Mufc . p. 49. f Arc, Nat, Tom. III. p* 108. 
V ' could 
