1And though the Quick-ſilver were by
this means brought to appear a very cloſe
and lovely Metalline Cylinder, not inter
rupted by interſperſ'd bubbles as before;
yet having cauſ'd the Air to be again
drawn out of the Receiver, I could per
ceive ſeveral little bubbles to diſcloſe
themſelves, faſten'd to the inſide of the
Tube, near the bottom of it; and having
purpoſely watch'd one or two of the chief
eſt, I had the pleaſure to obſerve, that
though they grew bigger and bigger as
the ſurface of the Mercurial Cylinder fell
nearer and nearer to them, ſo as that at
length they ſwell'd into a conſpicuous
bulk; yet upon the wary letting in the
Air upon them, they did not break, but
preſently ſhrunk up into a littleneſs that
render'd them inconſpicuous.
this means brought to appear a very cloſe
and lovely Metalline Cylinder, not inter
rupted by interſperſ'd bubbles as before;
yet having cauſ'd the Air to be again
drawn out of the Receiver, I could per
ceive ſeveral little bubbles to diſcloſe
themſelves, faſten'd to the inſide of the
Tube, near the bottom of it; and having
purpoſely watch'd one or two of the chief
eſt, I had the pleaſure to obſerve, that
though they grew bigger and bigger as
the ſurface of the Mercurial Cylinder fell
nearer and nearer to them, ſo as that at
length they ſwell'd into a conſpicuous
bulk; yet upon the wary letting in the
Air upon them, they did not break, but
preſently ſhrunk up into a littleneſs that
render'd them inconſpicuous.
Whence it ſeems very probable, if not
certain, that even in the cloſeſt and moſt
ponderous Liquors, and therefore much
more in Water, there may lurk undiſcern
able parcels of Air, capable, upon the
removal of the preſſure of the ambient
Air (though but in part) and that of the
Liquor wherein it lurks, to produce con
ſpicuous bubbles. And conſequently, if
it ſeem inconvenient to admit an Elaſtical
certain, that even in the cloſeſt and moſt
ponderous Liquors, and therefore much
more in Water, there may lurk undiſcern
able parcels of Air, capable, upon the
removal of the preſſure of the ambient
Air (though but in part) and that of the
Liquor wherein it lurks, to produce con
ſpicuous bubbles. And conſequently, if
it ſeem inconvenient to admit an Elaſtical