Descartes, René, Renati Des-Cartes principia philosophiae

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb pagenum="205"/>
              vicinum Soli, quàm nunc eſt, propter nimiam ſuam
                <lb/>
              ſoliditatem. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1273"/>
              III.
                <lb/>
              Diſtinctio Terrae in tres
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              regiones: & primae
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              deſcriptio. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1274"/>
              15</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1275"/>
              20</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1276"/>
              25</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1277"/>
              30</s>
            </p>
            <figure id="fig55" number="56"/>
            <p type="main">
              <s>
                <arrow.to.target n="marg1278"/>
                <lb/>
              Media regio M tota occupatur à corpore valde opa­
                <lb/>
              co & denſo: cùm enim hoc corpus facti, ſit ex parti­
                <lb/>
                <arrow.to.target n="marg1279"/>
              culis minutiſſimis (utpote quae priùs ad primum ele­
                <lb/>
              mentum pertinebant), ſibi invicem adjunctis, nulli
                <lb/>
              videntur in eo meatus relicti eſſe, niſi tam exigui, ut
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              ſolis illis particulis ſtriatis ſuprà deſcriptis, ac reliquae
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              materiae primi elementi, tranſitum praebere poſſint.
                <lb/>
                <arrow.to.target n="marg1280"/>
              Hocque experientia teſtatur in maculis Solis, quae
                <lb/>
              cùm ſint ejuſdem naturae atque hoc corpus M, niſi
                <lb/>
              quòd ſint multo tenuiores & rariores, tranſitum tamen
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              luminis impediunt; quod vix poſſent, ſi earum mea­
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              tus eſſent ſatis lati ad globulos ſecundi elementi ad­
                <lb/>
                <arrow.to.target n="marg1281"/>
              mittendos. </s>
              <s>Cùm enim iſti meatus initio in materiâ
                <lb/>
              fluidâ vel molli formati ſint, haud dubiè eſſent etiam
                <lb/>
              ſatis recti & laeves ad actionem luminis non impe­
                <lb/>
              diendam. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1278"/>
              IV.
                <lb/>
              Deſcriptio ſecundoe. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1279"/>
              5</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1280"/>
              10</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1281"/>
              15</s>
            </p>
            <p type="main">
              <s>
                <arrow.to.target n="marg1282"/>
                <lb/>
              Sed iſtea duae interiores Terrae regiones parum ad nos
                <lb/>
                <arrow.to.target n="marg1283"/>
              ſpectant, quia nemo unquam ad ipſas vivus acceſſit. </s>
              <s>
                <lb/>
              Sola tertia ſupereſt, ex quâ omnia corpora quae hîc
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              circa nos reperiuntur, oriri poſſe deinceps oſtende­
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              mus. </s>
              <s>Nunc autem nihil adhuc aliud in ipſâ eſſe ſuppo­
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              nimus, quàm magnam congeriem particularum tertii
                <lb/>
                <arrow.to.target n="marg1284"/>
              elementi, multùm materiae coeleſtis circa ſe habentium,
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              quarum intima natura ex modo, quo genitae ſunt,
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              poteſt agnoſci. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1282"/>
              V.
                <lb/>
              Deſcriptio tertioe. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1283"/>
              20</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1284"/>
              25</s>
            </p>
            <p type="main">
              <s>
                <arrow.to.target n="marg1285"/>
                <lb/>
              Nempe, cùm ortae ſint ex diſſolutione macularum,
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              quae minutiſſimis primi elementi ramentis, ſibi mutuò
                <lb/>
                <arrow.to.target n="marg1286"/>
              adjunctis, conſtabant: unaquaeque ex plurimis iſtiuſ­
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              modi ramentis componi debet, atque eſſe ſatis magna, </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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