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

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb xlink:href="013/01/237.jpg" pagenum="207"/>
              come directly in a ſtraight Line from the
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              Watch unto the Ear. </s>
              <s>And it was obſerva­
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              ble to this purpoſe, that we found a mani­
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              feſt diſparity of noiſe, by holding our Ears
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              near the ſides of the Receiver, and near the
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              Cover of it: which difference ſeem'd to
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              proceed from that of the Texture of the
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              Glaſs, from the ſtructure of the cover (and
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              of the Cement) through which the ſound
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              was propagated from the Watch to the
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              Ear. </s>
              <s>But let us proſecute our Experiment.
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              </s>
              <s>The Pump after this being imployd, it
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              ſeemd that from time to time the ſound
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              grew fainter and fainter; ſo that when the
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              Rec iver was empty'd as much as it uſ'd
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              to be for the foregoing Experiments, nei­
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              ther we, nor ſome ſtrangers that chanc'd
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              to be then in the room, could, by applying
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              our Ears to the very ſides, hear any noiſe
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              from within; though we could eaſily per­
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              ceive that by the moving of the hand
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              which mark'd the ſecond minutes, and by
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              that of the ballance, that the Watch nei­
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              ther ſtood ſtil, nor remarkably varied from
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              its wonted motion. </s>
              <s>And to ſatisfie our
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              ſelvs further that it was indeed the abſence
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              of the Air about the Watch that hinder'd
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              us from hearing it, we let in the external
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              Air at the Stop-cock, and then though we </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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