Descartes, René, Renati Des-Cartes principia philosophiae

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb pagenum="94"/>
              jori circulo circa Solem ferentur, minores ſuos cir­
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              culos circa Jovem aliquoties percurrant. </s>
              <s>Eodemque
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              modo vortex, qui habet Terram in centro, efficiat ut
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              Luna menſis ſpatio eam circumeat, ipſa autem Terra
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              ſingulis diebus circa proprium axem integrum
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              abſolvat; ita ut eodem tempore quo Terra & Luna cir­
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              culum communen ſemel peragrabunt, Terra 365 vici­
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              bus circa proprium centrum, & Luna duodecies circa
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              Terram vertatur. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg672"/>
              XXXIII.
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              Quomodo etiam Terra
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              circa proprium cen­
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              trum, & Luna circa
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              Terram vehatur. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg673"/>
              25</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg674"/>
              30</s>
            </p>
            <p type="margin">
              <s>
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              5</s>
            </p>
            <p type="main">
              <s>
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                <lb/>
              Denique, ne putemus omnia centra
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              ac­
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              curatè in eodem plano ſemper conſiſtere, nec circulos
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              quos deſcribunt eſſe omnino perfectos; ſed, ut in om­
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              nibus aliis rebus naturalibus contingere videmus, iſta
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              tantúm praeterpropter talia eſſe, ac etiam labentibus
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              ſaeculis continuò mutari arbitremur.
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              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg676"/>
              XXXIV.
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              Motus coelorum non
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              eſſe perfectè circulares. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg677"/>
              10</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg678"/>
              15</s>
            </p>
            <p type="main">
              <s>
                <arrow.to.target n="marg679"/>
                <lb/>
              Nempe, ſi haec figura repraeſentet planum, in quo
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              centrum Terrae toto anno verſatur, quod vocatur pla­
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              num Eclipticae atque ope Fixarum in coelo determi­
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              natur, putandum eſt unumquemque ex aliis Planetis
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              in alio quodam plano verſari, ad hoc
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              incli­
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              nato, & ipſum interſecante in lineâ quae tranſit per
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              centrum Solis: ita ut Sol in omnibus iſtis planis repe­
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              riatur. </s>
              <s>Exempli cauſà, orbita Saturni ſecat nunc Eclip­
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              ticam in ſignis Cancri & Capricorni, ſupra ipſam au­
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              tem attollitur hoc eſt verſús Boream inclinatur
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              Librâ, & infra eandem verſús Auſtrum deprimitur in
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              Ariete anguluſque ipſius inclinationis eſt circiter gra­
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              duum
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              . </s>
              <s>Sicque aliorum Planetarum orbitae ſecant
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              Eclipticam in aliis locis; ſed inclinatio in Jove &
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              Marte eſt minor, in Venere uno circiter gradu major,
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                <lb/>
              &sin Mercurio maxima: eſt enim fere 7 graduum. </s>
              <s>Ac </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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