Jordanus de Nemore, [Liber de ratione ponderis], 1565

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    <archimedes>
      <text>
        <body>
          <chap>
            <subchap1>
              <p>
                <pb xlink:href="049/01/012.jpg"/>
                <figure id="id.049.01.012.1.jpg" xlink:href="049/01/012/1.jpg" number="9"/>
              </p>
              <p>
                <s id="id.2.6.02.01">Sit responsa a, c, b, et sit a, c, longior
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                quám c, b. dico quód appensis aequa­
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                libus ponderibus, quae sint a, et b. </s>
                <s id="id.2.6.02.02">de
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                clinabit ex parte a, dimissa enim perpen
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                diculari c, f, b, circinentur duae quartae cir
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                culorum circa centrum c, quae sint a, b, et
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                b, f, et eductis contingentibus ab a, et b,
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                quae sint a, e. </s>
                <s id="id.2.6.02.03">et b, d, palam est minorem
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                esse angulum e, a, b, contingentiae, quám
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                d, b, f, et ideo minor obliquus descensus
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                per a, b, quám per b, f. grauius ergo a,
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                quám b, in hoc situ.
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                </s>
              </p>
            </subchap1>
            <subchap1>
              <p>
                <s id="id.2.7.00.01">Quaestio sexta.
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                </s>
              </p>
              <p>
                <figure id="id.049.01.012.2.jpg" xlink:href="049/01/012/2.jpg" number="10"/>
                <s id="id.2.7.01.01">Si fuerint brachia librae pro
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                portionalia ponderibus appe
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                nsorum ita, ut in breuiori grau­
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                iter appendatur, aeque gra­
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                uia erunt secundum situm ap­
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                pensa.
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                </s>
              </p>
              <p>
                <figure id="id.049.01.012.3.jpg" xlink:href="049/01/012/3.jpg" number="11"/>
                <figure id="id.049.01.012.4.jpg" xlink:href="049/01/012/4.jpg" number="12"/>
                <s id="id.2.7.02.01">Sit ut prius regula a, c, b, appensa
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                a, et b, sitque proportio b, ad a, tam
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                quam a, c, ad bc. dico quód non
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                nutabit in aliqua parte librae. </s>
                <s id="id.2.7.02.02">sit enim
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                ut ex parte b, descendat, transeatque
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                in obliquum linea d, c, e, loco a, c, b, et
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                appensa d, ut a, et e, ut b, et d, b, linea orthogonaliter descendat, et e, h,
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                ascendat. </s>
                <s id="id.2.7.02.03">palam quoniam trianguli d, c, b, et e, c, h, sunt similes, quia pro
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                portio d, c, ad c, e, quám d, b, ad e, h, atque d, c, ad c, e, sicut b, ad a, ergo d, b,
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                ad e, h, sicut b, ad a, sit igitur c, l, aequalis c, b, et c, e, et l, aequatur b, in pon</s>
              </p>
            </subchap1>
          </chap>
        </body>
      </text>
    </archimedes>
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