C 604 ) 
-received opinion: but yet (with aH refpeft to the abettors of 
either ) feveral difficulties occurred to me, whether of the two 
fuppofitions foever were allowed. 
For, firfi, I conceived it might be doubted (each of thefe, whe- 
ther fiDgie fibre., or mufcles, being fuppoftd didinil, as 1 think 
they generally are,, and, if annular, I conceive, muft be) how the 
aftuating matter,or impreffion (^according to the opinion of fome 
learned men ) fliould be tranfmitted from one to another down 
along the \vhole iraft of the Inteftines 5 (ince Natures ufual way, for 
the propagation of Animal motion,is by a Continual ion of veflTeLs 
(or at lead fibres, whether they be concave or not) from the pare 
where it begins to that to which *t is imparted, either for the con- 
'veyancecf fomeafluatingfubftance, or (accordingto the other 
Bypothefis^ the communicating an impreflion. But there being, 
in the fuppofidon, no fuch continuation of veflfels or fi- 
~ bres, a lateral contiguity being all that can be pretended, it might 
perhaps be urged,that the influent and moving matter (according 
£0 that notion ) might be tranfmitted by mutual inofculations be- 
tween the contiguous fibres along their fides ^ which, if there be 
no Communication by vefiels^ was the only way,! could ghefs at, 
to folve the doubt ; for,the notion of dX\lmpre[fion would hardly 
do the bufinefs, fince it feemed not evident, that there could be,in 
thatfuppofition of a Continuity of fibres, tenfity enough in the 
Inteftins to carry on fuch a motion. But to this I confidered, 
Seconal)^ That fuch a fuppofition feemed not very agreeable 
to Natures methods, which ordinarily makes ufe of VeiTels (and 
thofe borh clofe, and as direft as the defign and organization of 
the part will bear,) for the tranfmiflionof the fluid fub/lances in 
the bodies of animals^ not lateral emiflaries • except where fome 
^reat inconvenience is defigned to be prevented by the help of 
fuch conveyances ; as, for inftance, by the AnaftomofeSjdifcover- 
ed to be between veins and veins, arteries and arteries, in which 
veflelsthebloud running with a large and rapid ftream^ fliould 
an V of them chance to be obftrufled^ the Circulation, To neceffary 
tolife,muft needs be intercepted,without fome lateral conveyance 
of it into others of the fame kind: Which inconvenience yet I 
fuppofed would hardly be alledged in the prefent cafe ; thdi fa- 
brick of thofe veflTels feeming to be defigned for extraordinary 
emergencieSjbut ^^^j? being,accordingTO the prefent fuppofition, 
the confiantand neceflary dufts of this aftiJating matter. But 
neverthelefs, "thirdly^ 
