1ordinary Pipe. For we hop'd, that by
means of a ſtring faſtned to the upper
part of the Bellows, and to the moveable
ſtopple that makes a part of the Cover
of our Receiver, we ſhould, by frequent
ly turning round that ſtopple, and the an
nexed ſtring, after the manner already
often recited, be able to lift up and diſtend
the Bellows; and by the help of a com
petent weight faſten'd to the ſame upper
part of the Bellows, we ſhould likewiſe
be able, at pleaſure, to compreſs them:
and by conſequence, try whether that
ſubtler matter then Air (which, accord
ing to thoſe that deny a Vacuum, muſt be
ſuppoſ'd to fill the exhauſted Receiver)
would be able to produce a ſound in the
Muſical Pipe; or in a Pipe like that of or
dinary Bellows, to beget a Wind capable
to turn or ſet a moving ſome very light
matter, either ſhap'd like the Sails of a
Wind-Mill, or of ſome other conveni
ent form, and expoſ'd to its Orifice. This
Experiment, I ſay, we thought to make,
but have not yet actually made it for want
of an Artificer to make us ſuch a pair of
Bellows as it requires.
means of a ſtring faſtned to the upper
part of the Bellows, and to the moveable
ſtopple that makes a part of the Cover
of our Receiver, we ſhould, by frequent
ly turning round that ſtopple, and the an
nexed ſtring, after the manner already
often recited, be able to lift up and diſtend
the Bellows; and by the help of a com
petent weight faſten'd to the ſame upper
part of the Bellows, we ſhould likewiſe
be able, at pleaſure, to compreſs them:
and by conſequence, try whether that
ſubtler matter then Air (which, accord
ing to thoſe that deny a Vacuum, muſt be
ſuppoſ'd to fill the exhauſted Receiver)
would be able to produce a ſound in the
Muſical Pipe; or in a Pipe like that of or
dinary Bellows, to beget a Wind capable
to turn or ſet a moving ſome very light
matter, either ſhap'd like the Sails of a
Wind-Mill, or of ſome other conveni
ent form, and expoſ'd to its Orifice. This
Experiment, I ſay, we thought to make,
but have not yet actually made it for want
of an Artificer to make us ſuch a pair of
Bellows as it requires.
We had thoughts alſo of trying whe
ther or no, as Sounds made by Bodies in
ther or no, as Sounds made by Bodies in
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