Boyle, Robert, New experiments physico-mechanicall, touching the spring of the air and its effects, 1660

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1there had in readineſs a round and hollow
Veſſel of Pewter, great enough to con­
tain two pounds of Water, and exactly
cloſe every where, but at one little hole
where it was to be fill'd; then partly by
ſucking out the Air, and partly by inject­
ing Water with a Syringe, it was (not
without ſome difficulty) fill'd up to the
top; and that hole being plac'd directly
upwards, there was a little more Water
leiſurely forc'd in by the Syringe.
Upon
which, though the Veſſel were permitted
to reſt, and the hole kept in its former po­
ſture, yet the compreſſ'd Water leiſurely
ſwell'd above the Orifice of the hole, and
divers drops ran over along the ſides of the
Veſſel.
After this, we cauſ'd a skilful Pew­
terer (who had made the Globe) to cloſe
it up in our preſence with Soder ſo exqui­
ſitely, that none ſuſpected there was any
thing left in it beſides Water.
And laſt­
ly, the Veſſel thus ſoder'd up, was wari­
ly and often ſtruck in divers places with a
Wooden Mallet, and thereby was mani­
feſtly compreſſ d, whereby the incloſed
Water was crouded into leſs room then it
had before: And thereupon when we took
a Needle, and with it and the Mallet per­
forated the Veſſel, and drew out the

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