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="013/01/065.jpg" pagenum="25"/>
              round, that each Corpuſcle endeavours
                <lb/>
              to beat off all others from coming within
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              the little Sphear requiſite to its motion
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              about its own Center; and (in caſe any,
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              by intruding into that Sphear ſhall op­
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              poſe its free Rotation) to expell or drive
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              it away: So that according to this Do­
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              ctrine, it imports very little, whether the
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              particles of the Air have the ſtructure re­
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              quiſite to Springs, or be of any other
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              form (how irregular ſoever) ſince their
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              Elaſtical power is not made to depend
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              upon their ſhape or ſtructure, but upon
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              the vehement agitation, and (as it were)
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              brandiſhing motion, which they receive
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              from the fluid
                <emph type="italics"/>
              Ether
                <emph.end type="italics"/>
              that ſwiftly flows
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              between them, and whirling about each
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              of them (independently from the reſt)
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              not onely keeps thoſe ſlender Aërial
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              Bodies ſeparated and ſtretcht out (at leaſt,
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              as far as the Neighbouring ones will per­
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              mit) which otherwiſe, by reaſon of
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              their flexibleneſs and weight, would
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              flag or curl; but alſo makes them hit
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              againſt, and knock away each other, and
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              conſequently require more room, then
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              that which if they were compreſſ'd, they
                <lb/>
              would take up. </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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