1or from the Union of two or three of
thoſe numerous bubbles which were then
generated below the bottom of the Pipe,
where we could not ſee what was done a
mong them.
thoſe numerous bubbles which were then
generated below the bottom of the Pipe,
where we could not ſee what was done a
mong them.
Another thing we noted in our bubbles
was, That whereas in ordinary ones the
Air, together with the thin film of Water
that inveſts and detains, is wont to ſwell
above the ſurface of the Water it ſwims
on, and commonly to conſtitute Hemiſ
pherical Bodies with it, the little parcels
of Air that came up after the Receiver
was pretty well empty'd, did not make
protuberant bubbles, but ſuch whoſe up
per ſurface was either level with or be
neath that of the Water, ſo that the up
per ſurface being uſually ſomewhat con
vex, the leſs protuberant parts of it had
a pretty quantity of Water remaining a
bove them.
was, That whereas in ordinary ones the
Air, together with the thin film of Water
that inveſts and detains, is wont to ſwell
above the ſurface of the Water it ſwims
on, and commonly to conſtitute Hemiſ
pherical Bodies with it, the little parcels
of Air that came up after the Receiver
was pretty well empty'd, did not make
protuberant bubbles, but ſuch whoſe up
per ſurface was either level with or be
neath that of the Water, ſo that the up
per ſurface being uſually ſomewhat con
vex, the leſs protuberant parts of it had
a pretty quantity of Water remaining a
bove them.
We alſo further obſerv'd, That where
as in the bubbles that firſt appear'd in
the Pipe, the aſcending Air did, as in o
ther common bubbles, make its way up
wards, by dividing the Water through
which it paſſ'd, in thoſe bubbles that ap
pear'd at the latter end of our Experi
ment, when the preſſure of the little ex-
as in the bubbles that firſt appear'd in
the Pipe, the aſcending Air did, as in o
ther common bubbles, make its way up
wards, by dividing the Water through
which it paſſ'd, in thoſe bubbles that ap
pear'd at the latter end of our Experi
ment, when the preſſure of the little ex-