DelMonte, Guidubaldo, In duos Archimedis aequeponderantium libros Paraphrasis : scholijs illustrata

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    <archimedes>
      <text>
        <body>
          <chap id="N10019">
            <p id="N107FD" type="main">
              <s id="N108A1">
                <pb xlink:href="077/01/018.jpg" pagenum="14"/>
              taſſe quiſpiam, vel ambas, inquiens, centri grauitatis defini­
                <lb/>
              tiones allatas, diminutas eſſe; vel ijs, quæ modò à nobis de
                <expan abbr="cẽ">cem</expan>
                <lb/>
              tro grauitatis dicta ſunt, repugnare; cùm oſtenderimus cen­
                <lb/>
              trum grauitatis aliquando eſſe, vel in ambitu figuræ, vel extra
                <lb/>
              figuram; definitiones verò allatę ſemper ſupponunt illud eſſe
                <lb/>
              in ipſis intra
                <expan abbr="poſitũ">poſitum</expan>
              .
                <expan abbr="Cõfirmaturquè">Confirmaturquè</expan>
              difficultas, quandoqui­
                <lb/>
              dem, ne〈que〉 huiuſmodi centrum extra figuram conſtitutum,
                <lb/>
              fuiſſe Archimedi prorſus ignotum, exiſtimare debemus; vt
                <lb/>
              colligere licet ex nono poſtulato huius libri; cùm inquit.
                <lb/>
                <emph type="italics"/>
              Omnis figuræ, cuius perimeter ſit ad eandem partem concauus, centrum
                <lb/>
              grauitatis intra ipſam eſſe oportet.
                <emph.end type="italics"/>
              quaſi non repugnet figurę peri
                <lb/>
              metrum non ad eandem partem concauum habenti, extra
                <lb/>
              ipſam grauitatis centrum obtinere. </s>
              <s id="N108D0">Cui obiectioni in hunc
                <lb/>
              modum occurri poterit, ſi dixerimus, quòd quamuis exempli
                <lb/>
              gratia in figura C dictum ſit centrum grauitatis D extra fi
                <lb/>
              guram exiſtere, id ipſum etiam intra figuram eſſe affirmati
                <lb/>
              poterit. </s>
              <s id="N108DA">ſiquidem ambitus figurę C centrum D intra ſe
                <expan abbr="cõ">com</expan>
                <lb/>
              tinct; ita vt reſpectu tötius ſit intra. </s>
              <s id="N108E2">idemquè dicendum eſt de
                <lb/>
              altera figura A. hoc autem euidentiſſimum eſt in figura E.
                <lb/>
              & hic eſt ſenſus definitionum centri grauitatis. </s>
              <s id="N108E8">His ita〈que〉 pri
                <lb/>
              mùm cognitis conſideranda eſt intentio Archimedis in his li
                <lb/>
              bris, quę quidem vt plurimum à librorum inſcriptionibus e­
                <lb/>
              luceſcere ſolet. </s>
            </p>
            <figure id="id.077.01.018.1.jpg" xlink:href="077/01/018/1.jpg" number="5"/>
            <p id="N108F4" type="head">
              <s id="N108F6">DE SCOPO HORVM LIBRORVM</s>
            </p>
            <p id="N108F8" type="main">
              <s id="N108FA">Si Archimedis propoſitum in his libris ex ipſa operis in­
                <lb/>
              ſcriptione, vt in alijs quo〈que〉 aliorum authorum volumini­
                <lb/>
              bus fieri vt plurimùm ſolet, inueſtigandum erit, partim ſanè
                <lb/>
              conſpicuum illud eſſe videbitur, partim verò ignotum adeò,
                <lb/>
              vt potiùs nullius fermè rei ſe habiturum eſſe ſermonem profi­
                <lb/>
              teatur Archimedes. </s>
              <s id="N10906">quid enim (obſecro) verbis illis ſignificari
                <lb/>
              potuit, 〈que〉 primi libri initio ita ſe
                <expan abbr="habẽt">habent</expan>
              .
                <foreign lang="grc">Aρχιμήδους ἐπιπέδων ἰσορ­
                  <lb/>
                ροπιχω̄ν, ὴ κέντρα βάρων ἐπιπέδων.</foreign>
              hoc eſt.
                <emph type="italics"/>
              Archimedis planorum æ〈que〉pon
                <lb/>
              derantium, vel centra grauitatum planorum.
                <emph.end type="italics"/>
              quando quidem vide­
                <lb/>
              tur Archimedes rem prorſus
                <expan abbr="inutilẽ">inutilem</expan>
              , quinnimò naturę repu­
                <lb/>
              gnantem ſibi contemplandam proponere. </s>
              <s id="N10924">dùm enim </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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