Hce^najlatics. 
21. When the VefTcls are in feme Degree 
emptied by bleeding, there being then a lefs 
I Quantity of Blood in the Arteries and Veins, 
and confequently a Icfs Quantity palling in e- 
qual times thro’ the Heart, it finds proportio- 
nably lefs Refiftance . from the arterial Blood, 
whence an Abatement in the Vigour of the 
Pulfe. It being alfo thereby lefs forcibly pro- 
pelled thro’ the capillary Vefl'els, and conle- 
quently undergoing there much lefs Friftion 
it grows fcnfibly cooler. 
22. When a Vein is opened the Blood flows 
for that Time, not only the fafter in that Vein, 
but alfo in its correfponding Arteries ; whence 
it is found by Experience that bleeding near the 
Part afFeded is in fome cafes moft beneficial ; 
becaufe the fine capillary Velfcls of that parr, 
in which the regular Courfe of the Blood is 
retarded, will by this means be fooner drained, 
than if the Bleeding were at a more remote 
Part ; efpecially at the beginning of the Dif- 
eafe, before the Obftrudion be too firmly fix- 
ed, when bleeding near the affeded Part may 
rather increafe than abate the Inflammation. 
As bleeding or not bleeding in due time and 
Proportion are frequently of the utmoft Con- 
fequence to the Patienc, fo ic requires the 
M 5 fudgment 
