raore eafily to receive the charafter of t:he 
Blood ia the Heart : But that tHs nciight 
be more conveniently done, the Diibius 
ThormcHs being inferted into that trunck 
of the V^nd cava' which afcends to the 
Heart, becaufe that this way is ftiorte.r, 
and is equaUy fevoiirable to this com- 
mixture. 
It might alfo be objefted^that/appofing 
this corannixture were of importance, the 
DuB:fu- Therackus fliQuld communicate 
with the inferior trunck of the vena cava as 
well as with the [uferior^toxh^ end that the 
moiety of the Chy Le. being raixt with the 
blood that comes from on high, and tl^e 
other moiety with the blood that comes 
from beneath, (B) it might the more ea- 
fily be altered by this commixture. ^ And 
this Objedion Teemed the more rational, 
becaufe, it being very likely that the 
Blood, which returns from the parts in 
which it hath received fome impreffion 
in penetrating their porofities , commu- 
nicates to the Chyle thefe fame difpofiti- 
ons • there was reafon to defire, that the 
Blood which re-afcends might in fome de- 
gree imprefs the peculiar charader of the 
inferior parts,* as that, which comes from 
the upper part?, irapreffes upon it that 
which belongs to it. 
(C) Add hereunto , that the Blood 
which re-afcends to the Heart, raufl: be 
raore perfed ths^n that which defcends ^ 
becaufe it comes from being purified ia 
the Liver, Spleen, and Kidneys 5 fo that 
it is capable to give (Z>.) to the Ch^le 
good impreffions. 
(^.) Lailly, itmightbefaidjthat, fup- 
poiing it be neceffary that not only a por- 
tion of the Chyle pafs through the Heart, 
£0 give it fome kind of refreilimentjbut 
alfo that all the Chyle be conveyed thi- 
ther for to be ,cpnver|ed into Blood • 
the fraall orifices, ' which xh^ dnEins thora- 
cia4s\\d.th ifi the fubchvials, feem not to 
commxmre &f Blood ani 
ChjU fafficient. The re. 
inforcement that oije. 
ciion anfwers it [elf ^ bein^ 
fropofed in no other terms 
than ( it feems very like- 
ly ^ J the whole conjeBure 
having yet had but very 
flenderfomdation in. Phildfi^ 
fhy. Af}d if there he any 
thing in the notion of imfref^ 
Jing charaUers , it is more 
attributable to the lympha, 
^ See beneath lit, D. 
(C.) That the Blooi^ 
which re-afcends to tk 
Hjeart^ is purer than what 
def ends from the Heady & c. 
is a notion that will net cA' 
fily be granted^ neither cm 
it be made out hj Expert' 
ment, I have my felf com- 
pared the Blood of the JugH* 
lar vein with that of tk 
Crural in a Dogg , mi 
found no difference, Tk 
feparatiens made by the Kid* 
neys and Liver (if tk) 
prove any thing) prove tk 
afcending blood to be thicktr 
than the de[ eending ^ it hd- 
ving lofi in thofe places much 
, of its ferum and its lixivi» 
mlfdts^ which are the gre^t 
inflruments of attenuation, 
But wit hall it is to be con* 
fidered , that the Bhoi^ 
which afcends from theHe^rt 
to the Head mparts with much 
excrement in /-^^ gl^ndulas 
falivales, and nofirils^ Mi 
the whole throat h /he qum* 
titles.^ af which 'dPe m^ch 
greater than will' eaply 
wed. There k m' 
be 
tmdgi 
