1out of the Glaſs, there appear'd no bub
bles in the Water, notwithſtanding the
want of preſſure in the ambient Body.
bles in the Water, notwithſtanding the
want of preſſure in the ambient Body.
But to be ſure to reach the chief end of
our Experiment, we made uſe of this o
ther expedient: We cauſ'd a convenient
quantity of Water to be put, and Her
metically ſhut up into a Glaſs Egge, to
whoſe long Neck (which was purpoſely
made of an unequal thickneſs) was fa
ſten'd to one end of a ſtring, whoſe o
ther end was ty'd to the Cover of our
Receiver, after the manner elſewhere men
tion'd already: Then the Egge being
convey'd into the Pneumatical Veſſel,
and that being evacuated, we did, by
turning the braſs Stopple formerly de
ſcrib'd amongſt the parts of our En
gine, ſo ſhorten the ſtring as to break the
Glaſs; whereby liberty being given to
the Air impriſon'd in the Egge, to paſs
into the capacity of the Receiver, the ſud
den receſs of the Air made the bubbles in
a trice appear ſo numerous, and aſcend
ſo ſwiftly in the Water, that their motion
look'd like that of a violent ſhower of
Rain; ſave that the bubbles did not, like
the drops of Rain, tend downwards, but
upwards, which made me reſemble this
our Experiment, we made uſe of this o
ther expedient: We cauſ'd a convenient
quantity of Water to be put, and Her
metically ſhut up into a Glaſs Egge, to
whoſe long Neck (which was purpoſely
made of an unequal thickneſs) was fa
ſten'd to one end of a ſtring, whoſe o
ther end was ty'd to the Cover of our
Receiver, after the manner elſewhere men
tion'd already: Then the Egge being
convey'd into the Pneumatical Veſſel,
and that being evacuated, we did, by
turning the braſs Stopple formerly de
ſcrib'd amongſt the parts of our En
gine, ſo ſhorten the ſtring as to break the
Glaſs; whereby liberty being given to
the Air impriſon'd in the Egge, to paſs
into the capacity of the Receiver, the ſud
den receſs of the Air made the bubbles in
a trice appear ſo numerous, and aſcend
ſo ſwiftly in the Water, that their motion
look'd like that of a violent ſhower of
Rain; ſave that the bubbles did not, like
the drops of Rain, tend downwards, but
upwards, which made me reſemble this