1have been in the open Air. And on di
vers other occaſions it appear'd that the
ſounds created within our exhauſted
Glaſs, if they were not loſt before they
reach'd the Ear, ſeem'd at leaſt to arrive
there very much weaken'd. We intended
to try whether or no the Wire-ſtring of an
Inſtrument ſhut up into our Receiver,
would, when the ambient Air was ſuck'd
out, at all tremble, if in another Inſtrument
held cloſe to it, but without the Receiver
a ſtring tun'd (as Muſicians ſpeak, how
properly I now examine not) to an Uniſon
with it, were briskly toucht, and ſet a Vi
brating. This, I ſay, we purpoſ'd to try
to ſee how the motion made in the Air
without, would be propagated through the
cavity of our evacuated Receiver. But
when the Inſtrument wherewith the tryal
was to be made came to be imploy'd, it
prov'd too big to go into the Pneumatical
Veſſel, and we have not now the conveni
ency to have a fitter made.
vers other occaſions it appear'd that the
ſounds created within our exhauſted
Glaſs, if they were not loſt before they
reach'd the Ear, ſeem'd at leaſt to arrive
there very much weaken'd. We intended
to try whether or no the Wire-ſtring of an
Inſtrument ſhut up into our Receiver,
would, when the ambient Air was ſuck'd
out, at all tremble, if in another Inſtrument
held cloſe to it, but without the Receiver
a ſtring tun'd (as Muſicians ſpeak, how
properly I now examine not) to an Uniſon
with it, were briskly toucht, and ſet a Vi
brating. This, I ſay, we purpoſ'd to try
to ſee how the motion made in the Air
without, would be propagated through the
cavity of our evacuated Receiver. But
when the Inſtrument wherewith the tryal
was to be made came to be imploy'd, it
prov'd too big to go into the Pneumatical
Veſſel, and we have not now the conveni
ency to have a fitter made.
We thought likewiſe to convey into
the Receiver a long and ſlender pair of
Bellows, made after the faſhion of thoſe
uſually employ'd to blow Organs, and fur
niſh'd with a ſmall Muſical inſtead of an
the Receiver a long and ſlender pair of
Bellows, made after the faſhion of thoſe
uſually employ'd to blow Organs, and fur
niſh'd with a ſmall Muſical inſtead of an
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