24 
Hce?najlatics. 
Dilaration of aU the Arteries in each SyJioJe is 
equal to about the Quantity of two thirds of 
the Blood, which is thrown out in each Sy- 
Jlole, which in the Cafe of this Mare is 
equal to two thirds of ten cubic Inches, viz. 
6 . 66 . 
28. This Ventricle throVv^ing out ten cu- 
bic Inches at a time, will in the thirty fix Pulfes 
of a Minute throw out ^60 cubic Inches, 
equal to 15.7^ Pounds, and in an Hour 
Pounds weight of Blood, nearly equal to the- 
Weight of the Horfe. 
25). The Area of the tranfverfe Seftion of 
i\\Q Aorta hz'mg as above noted i.03<^Inch: 
And the immediate next Divifions of it be- 
ing in the Area of the like Sedion of the de- 
feending Aorta 0.6’jj Inch ; and that of the af- 
cending being o.3(^5), we find the Sum 
of the two Areas of thefe afeending and defeen- 
ding Branches is greater than that of the 
Trunck they arife from, and accordingly the. 
Velocity of the Blood will be proporciopably , 
abated in them ; as alfo on account of what paf- 
frs througli the coronary Arteries, before the 
Blood arrives at thofc two Branches, of which 
^hc defeending Aw'ta is confidcrably thelarg- 
eft, thereby to furnifii a greater Qiiantity of 
■ ■ ' ■ Blood 
