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

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