1then ſuch Ethereal matter as was ſubtle
enough freely to penetrate the pores of
the Glaſs, the external Air would have
been able to impel the Water to the top
of a Tube ſeven or eight times as long as
ours was; The Phænomenon under conſi
deration ſeem'd manifeſtly to argue that
the many bubbles that broke at the top
of the Water did contain a real Air,
which, being collected into one place and
hinder'd by the top of the Glaſs from re
ceding, was able to withſtand the preſſure
of the outward Air. As we ſee that if
never ſo little Air remain in the Tube up
on the making the Experiment De Vacuo
with Quick-ſilver, no inclining of the
Tube, though a long one, will enable a
Man to impel the Mercury up to the very
top, by reaſon (as we formerly noted)
of the reſiſtance of the included Air, which
will not be compreſſ'd beyond a certain
degree.
enough freely to penetrate the pores of
the Glaſs, the external Air would have
been able to impel the Water to the top
of a Tube ſeven or eight times as long as
ours was; The Phænomenon under conſi
deration ſeem'd manifeſtly to argue that
the many bubbles that broke at the top
of the Water did contain a real Air,
which, being collected into one place and
hinder'd by the top of the Glaſs from re
ceding, was able to withſtand the preſſure
of the outward Air. As we ſee that if
never ſo little Air remain in the Tube up
on the making the Experiment De Vacuo
with Quick-ſilver, no inclining of the
Tube, though a long one, will enable a
Man to impel the Mercury up to the very
top, by reaſon (as we formerly noted)
of the reſiſtance of the included Air, which
will not be compreſſ'd beyond a certain
degree.
But in order to a further Diſcovery what
our bubbles were, we will, on this occa
ſion, inform Your Lordſhip that we try'd
the XIXth Experiment in one of our ſmall
Receivers, and ſound, that upon the draw
ing down of the Water, ſo many bubbles
diſcloſ'd themſelves and broke into the
our bubbles were, we will, on this occa
ſion, inform Your Lordſhip that we try'd
the XIXth Experiment in one of our ſmall
Receivers, and ſound, that upon the draw
ing down of the Water, ſo many bubbles
diſcloſ'd themſelves and broke into the