Hamajlatics] 9 1 
Blood's Motion, either when cxcravafated^ 
or on Death, the Blood then cools as faft as 
any other warm Fluid of equal Deafity, which 
has no EfFervefcencc in it. 
2. As fermenting and effervefeent Mix- 
tures acquire Heat by the brisk Agitation and 
rubbing of the Particles of the effervefeent 
Mixture againft each other 5 fo the Globules 
of the Blood may well acquire their Warmth, 
by being briskly agitated, in pafling with 
great Velocity through innumerable divaricat- 
ing and converging fine Canals. 
5. And Is not this a principal ufe of 
the red Globules, which are the mofl: com- 
pa£t and firm part of the Blood, and withall 
claftick, whereby they are the more fufeep- 
tible of Warmth from this Agitation of Fric- 
tion ? Their red Colour intimates their a- 
bounding with Sulphur, which makes them 
the more fufceptible and retentive of Heat, 
than thofe Bodies which have lefs of it in 
them : For the more watery a Body is, the 
left fufceptible it is of Heat; whence *ds with 
good reafon concluded, that if pure Water 
were to pafs through the Blood Veflels, with 
a Velocity equal to that of the Blood, yet it 
would thereby acquire no Heat, This is what 
. we 
