( 122« ) 
thro the Veffds, ftall be made, the remaining Force will 
be found fo exceeding weak, ttiat to prop the Blood thro 
the Veins may be a task alone too great for fo (mall a 
Power, without charging it with the additional difficulty 
of forcing the.Mufcle of the Heart. 
Alphonfus Barellus^ after a great deal of folemn pains 
taken to flacw his care and exaflcnefs, and to pollefs his 
Reader of the truth of his Calculations, cafts up the Force 
ot the Heart, and the Mf^/f^/^r Coat of the Arteries, to be 
together equal to a weight of 3,750 /. and allots em a fVe* 
fiftance equal to 180,000/. to overcome which is 45 to 1/ 
To make up for a difproportion, by his own conteffion, 
incredible to, thofe who have not confidcred the matter as 
he had done, he flings into the Scale the additional Force 
of PercuJJionj which he leaves indefimte^ and thinks fuffici- 
en t to force any qniefcent finite Refijiance whatfoever. 
But as this Acconnt and Hypothefis are part of a Pofthu- 
mous Work ( if a liberty of Con jefture may be allow'd in 
fo uncertain a matter, J 1 fliou'd fufped, that thefe Papers 
were left unfinifht by J3<?re//^^y 5 or at leaft, that in many 
places the laft hand was never put to 'em. For, neither in 
this Place, nor any other of this Work^ does he account 
for any more than the Syjiole oi the Heart, and the refift* 
ance which is made to the Progreffive Motion of the Blood 
m the Arteries only. This alone he found to exceed the 
Power of the Heart fa prodigioufly, that he feems to (huf- 
fle it off his hands . with a general and precarious Solution, 
as a difficulty that he was defirous to be rid of. For, having 
afcrib'd this fiupendous (as he himfelf calls it) efFeft to the 
Energy of PercHjJion^ he takes no care to fatisfie his Reader 
any farther about it, or to refer him, or give him the ex- 
peftation of fatisfadion any where elfe ^ altho he has an 
exprefs Treatife on the Force of Percujjiony which was writ- 
ten preparatory to this, and to which he frequently refers 
in other Places of this Work* But what confirms my fuf- 
pidon, that this part was intended for a farther Revife by 
the 
