1would imagine, to drive out all the Air
from a large Æolipile, I eaſily ſuſpected
that the diſtenſion of the Bladder in our
pneumatical Veſſel, might proceed not
from the Watery ſteams that came out at
the narrow mouth of the Æolipile, and
had very much wetted the Bladder, but
from the rarified Air which in that ſort of
Veſſels is wont for a good while together
to come out with the rarified Water: and
accordingly having reiterated the Experi
ment I found it very difficult (by rea
ſon of the ſhrinking of the Bladders (up
on their being heated) and of other impe
diments) to make it ſo accurately as to de
duce from it, that Water may be rarified
into true Air.
from a large Æolipile, I eaſily ſuſpected
that the diſtenſion of the Bladder in our
pneumatical Veſſel, might proceed not
from the Watery ſteams that came out at
the narrow mouth of the Æolipile, and
had very much wetted the Bladder, but
from the rarified Air which in that ſort of
Veſſels is wont for a good while together
to come out with the rarified Water: and
accordingly having reiterated the Experi
ment I found it very difficult (by rea
ſon of the ſhrinking of the Bladders (up
on their being heated) and of other impe
diments) to make it ſo accurately as to de
duce from it, that Water may be rarified
into true Air.
Natural &
Hiſt.
In
, Lib. 3.
9.
Hiſt.
In
, Lib. 3.
9.
Geogr. Ge
ral. Lib.
19.
ral. Lib.
19.
Againſt the four other above-mention'd
Conſiderations, we cannot ſpend time to
frame Objections, but muſt forth with
proceed to the mention of thoſe things
that ſeem to argue that Air (at leaſt ſuch
as produc'd our bubbles) maybe gene
rated of Water and other Bodies.
Conſiderations, we cannot ſpend time to
frame Objections, but muſt forth with
proceed to the mention of thoſe things
that ſeem to argue that Air (at leaſt ſuch
as produc'd our bubbles) maybe gene
rated of Water and other Bodies.
Firſt then we have found by Experi
ence that a vapid Air, or Water rarified
into vapor, may at leaſt for a while emu
late the elaſtical power of that which is
generally acknowledg'd to be true Air.
ence that a vapid Air, or Water rarified
into vapor, may at leaſt for a while emu
late the elaſtical power of that which is
generally acknowledg'd to be true Air.