1ply the place of thoſe very hot Medicines
that are wont to be employ'd in ſuch Di
ſtempers: That Nature might much bet
ter have given the Heart but a moderate
heat, then ſuch an exceſſive one, as needs
to be perpetually cool'd, to keep it from
growing deſtructive; which the gentle,
and not the burning heat of an Animals
Heart, ſeems not intenſe enough ſo indi
ſpenſably to require. Theſe, and other
Objections, might be oppoſ'd, and preſſ'd
againſt the recited Opinion: But we ſhall
not inſiſt on them, but onely adde to
them, That it appears not by our fore
going Experiments (I mean the 38th and
39th) that in our exhauſted Receiver,
where yet Animals die ſo ſuddenly for
want of Reſpiration, the ambient Body is
ſenſibly hotter then the common Air.
that are wont to be employ'd in ſuch Di
ſtempers: That Nature might much bet
ter have given the Heart but a moderate
heat, then ſuch an exceſſive one, as needs
to be perpetually cool'd, to keep it from
growing deſtructive; which the gentle,
and not the burning heat of an Animals
Heart, ſeems not intenſe enough ſo indi
ſpenſably to require. Theſe, and other
Objections, might be oppoſ'd, and preſſ'd
againſt the recited Opinion: But we ſhall
not inſiſt on them, but onely adde to
them, That it appears not by our fore
going Experiments (I mean the 38th and
39th) that in our exhauſted Receiver,
where yet Animals die ſo ſuddenly for
want of Reſpiration, the ambient Body is
ſenſibly hotter then the common Air.
Other Learned Men there are, who will
have the very ſubſtance of the Air to get
in by the Veſſels of the Lungs, to the
left Ventricle of the Heart, not onely to
temper its heat, but to provide for the
generation of Spirits. And theſe alledge
for themſelves the Authority of the An
tients, among whom Hippocrates ſeems
manifeſtly to favor their Opinion; and
both Ariſtotle and Galen do ſometimes
have the very ſubſtance of the Air to get
in by the Veſſels of the Lungs, to the
left Ventricle of the Heart, not onely to
temper its heat, but to provide for the
generation of Spirits. And theſe alledge
for themſelves the Authority of the An
tients, among whom Hippocrates ſeems
manifeſtly to favor their Opinion; and
both Ariſtotle and Galen do ſometimes