Descartes, René, Renati Des-Cartes principia philosophiae

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb pagenum="148"/>
              ſimiles ſunt illis maculis quae in Solis ſuperficie con­
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              ſpici ſolent. </s>
              <s>Eâdem enim ratione, quà videmus aquam
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              liquoreſque alios quoſcunque, cùm igni ad moti effer­
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              veſcunt, atque aliquas particulas diverſae à reliquis
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              naturae ac minùs ad motum aptas in ſe continent,
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              denſam ſpumam ex particulis iſtis conflatam emittere,
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              quae ſupra ipſorum ſuperficiem natare, figuraſque ad­
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              modum irregulares & mutabiles habere ſolet: ita per­
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              ſpicuum eſt materiam Solis, utrimque ex ejus polis
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              verſùs eclipticam ebullientem, debere particulas
                <arrow.to.target n="marg955"/>
                <lb/>
              ſtriatas, aliaſque omnes quae facilè ſibi mutuò adhae­
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              rent, ac difficulter communi ipſius motui obſequuntur,
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              ex ſe tanquam ſpumam expellere. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg950"/>
              XCIV.
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              Quomodo ex iis macu­
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              lae in Solis vel ſtella­
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              rum ſuperficie gene­
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              rentur. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg951"/>
              20</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg952"/>
              15</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg953"/>
              30</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg954"/>
              5</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg955"/>
              10</s>
            </p>
            <p type="main">
              <s>
                <arrow.to.target n="marg956"/>
                <lb/>
              Atque hinc a facile eſt cognoſcere, cur Solis maculae
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              non ſoleant apparere circa ejus polos, ſed potiùs
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                <lb/>
              partibus eclipticae vicinis; & cur figuras habeant
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              valde varias & incertas; & denique cur in orbem circa
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              Solis polos, ſi non tam celeriter quàm ejus ſubſtantia,
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              ſaltem ſimul cum eà parte coeli quae illi proxima eſt,
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              moveantur.
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              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg956"/>
              XCV.
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              Hinc cognoſci praeci­
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              puas harum macula­
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              rum proprietates. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg957"/>
              15</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg958"/>
              20</s>
            </p>
            <p type="main">
              <s>
                <arrow.to.target n="marg959"/>
                <lb/>
              At verò, quemadmodum plerique liquores eandem
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              ſpumam, quam initio efferveſcendo emittunt, rurſus
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              poſtea diutiùs ebulliendo reſorbent & abſumunt: ita
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              putandum eſt, eàdem facilitate quà materia macula­
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              rum è corpore Solis emergit, atque in ejus
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                <lb/>
              cumulatur, paulò pòſt etiam imminui, & partim in
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              ejus ſubſtantiam refundi, partimque per coelum vici­
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              num diſpergi. </s>
              <s>(Non enim ex toto Solis corpore, ſed
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              tantùm ex materià quae recens in illum ingreſſa eſt,
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              maculae iſtae formantur.) </s>
              <s>Ac reliqua materia
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              </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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