And as for the Allegations above
mention'd, they ſeem to prove but that
the Receiver devoy'd of Air, May be re
pleniſh'd with ſome ſuch Etherial Matter,
as ſome Modern Naturaliſts write of; but
not that it really is ſo. And indeed to me
it yet ſeems, that as to thoſe ſpaces which
the Vacuiſts would have to be empty, be
cauſe they are manifeſtly devoid of Air;
and all groſſer Bodies, the Pleniſts (if I
may ſo call them) do not prove that ſuch
ſpaces are repleniſh'd with ſuch a ſubtle
Matter as they ſpeak of, by any ſenſible
effects, or operations of it (of which di
vers new Tryals purpoſely made, have not
yet ſhown me any) but onely conclude
that there muſt be ſuch a Body, becauſe
there cannot be a Void. And the reaſon
why there cannot be a Void, being by
them taken, not from any Experiments,
or Phænomena of Nature, that clearly and
particularly prove their Hypotheſis, but
from their notion of a Body, whoſe Na
ture, according to them, conſiſting one
ly in extenſion (which indeed ſeems the
property moſt eſſential to, becauſe inſepa
rable from a Body) to ſay a ſpace devoid
of Body, is to ſpeak in the School-mens
Phraſe, a Contradiction in Adjecto: This
mention'd, they ſeem to prove but that
the Receiver devoy'd of Air, May be re
pleniſh'd with ſome ſuch Etherial Matter,
as ſome Modern Naturaliſts write of; but
not that it really is ſo. And indeed to me
it yet ſeems, that as to thoſe ſpaces which
the Vacuiſts would have to be empty, be
cauſe they are manifeſtly devoid of Air;
and all groſſer Bodies, the Pleniſts (if I
may ſo call them) do not prove that ſuch
ſpaces are repleniſh'd with ſuch a ſubtle
Matter as they ſpeak of, by any ſenſible
effects, or operations of it (of which di
vers new Tryals purpoſely made, have not
yet ſhown me any) but onely conclude
that there muſt be ſuch a Body, becauſe
there cannot be a Void. And the reaſon
why there cannot be a Void, being by
them taken, not from any Experiments,
or Phænomena of Nature, that clearly and
particularly prove their Hypotheſis, but
from their notion of a Body, whoſe Na
ture, according to them, conſiſting one
ly in extenſion (which indeed ſeems the
property moſt eſſential to, becauſe inſepa
rable from a Body) to ſay a ſpace devoid
of Body, is to ſpeak in the School-mens
Phraſe, a Contradiction in Adjecto: This