Commandino, Federico, Liber de centro gravitatis solidorum, 1565

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <pb xlink:href="023/01/024.jpg"/>
              <s id="s.000235">
                <arrow.to.target n="marg32"/>
              ergo linea ag continenter in duas partes æquales diui­
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              ſa, relinquetur
                <expan abbr="tãdem">tandem</expan>
              pars aliqua ng, quæ minor erit lm. </s>
              <lb/>
              <s id="s.000236">Vtraque uero linearum ag, gb diuidatur in partes æqua­
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              les ipſi ng: & per puncta diuiſionum plana oppoſitis pla­
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                <arrow.to.target n="marg33"/>
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              nis æquidiſtantia ducantur. </s>
              <s id="s.000237">erunt ſectiones figuræ æqua­
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              les, ac ſimiles ipſis ace, bdf: & totum priſma diuiſum erit
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              in priſmata æqualia, & ſimilia: quæ cum inter ſe
                <expan abbr="congruãt">congruant</expan>
              ;
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              & grauitatis centra ſibi ipſis congruentia,
                <expan abbr="reſpondentiaq;">reſpondentiaque</expan>
                <lb/>
                <figure id="id.023.01.024.1.jpg" xlink:href="023/01/024/1.jpg" number="16"/>
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              habebunt. </s>
              <s id="s.000238">
                <expan abbr="Itaq:">Itaque</expan>
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              ſunt magnitudi­
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              nes
                <expan abbr="quædã">quædam</expan>
              æqua­
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              les ipſi nh, & nu­
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              mero pares, qua­
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              rum centra gra­
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              uitatis in
                <expan abbr="eadẽre">eadem</expan>
              re
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              cta linea conſti­
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              tuuntur: duæ ue­
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              ro mediæ æqua­
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              les ſunt: & quæ ex
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              utraque parte i­
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              pſarum ſimili­
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              ter æquales: & æ­
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              quales rectæ li­
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              neæ, quæ inter
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              grauitatis centra
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              interiiciuntur. </s>
              <lb/>
              <s id="s.000239">quare ex corolla­
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              rio quintæ pro­
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              poſitionis primi
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              libri Archimedis
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              de centro graui­
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              tatis planorum; magnitudinis ex his omnibus compoſitæ
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              centrum grauitatis eſt in medio lineæ, quæ magnitudi­
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              num mediarum centra coniungit. </s>
              <s id="s.000240">at qui non ita res </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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