Weidler, Johann Friedrich, Jo. Friderici Weidleri Tractatus de machinis hydraulicis toto terrarum orbe maximis Marlyensi et Londinensi et aliis rarioribus similibus in quo mensurae prope ipsas machinas notatae describuntur, et de viribus earum luculenter disseritur

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        <div xml:id="echoid-div109" type="section" level="1" n="79">
          <pb o="57" file="0173" n="178" rhead="GEOMETRIA SVBTERRANEA."/>
          <p>
            <s xml:id="echoid-s2941" xml:space="preserve">5. </s>
            <s xml:id="echoid-s2942" xml:space="preserve">Aufer priorem circulum b, et in tertiam cauernam
              <lb/>
            procede, et ſimiliter quaere directionem funis eh, et ſingu-
              <lb/>
            las horas notatas ſolito more in indicem ſcribe, una inue-
              <lb/>
            ſtigata inclinatione ad horizontem.</s>
            <s xml:id="echoid-s2943" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2944" xml:space="preserve">6. </s>
            <s xml:id="echoid-s2945" xml:space="preserve">Quoniam autem ſemper horizontali ſitu orbes ho-
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            rarii poni debent, ſiquidem lineae plagarum mundi, funt
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            radii horizontis ſenſibilis, (§. </s>
            <s xml:id="echoid-s2946" xml:space="preserve">19. </s>
            <s xml:id="echoid-s2947" xml:space="preserve">aſtron. </s>
            <s xml:id="echoid-s2948" xml:space="preserve">ſphaer.) </s>
            <s xml:id="echoid-s2949" xml:space="preserve">attamen
              <lb/>
            in ualde inclinatis, cadentibus v. </s>
            <s xml:id="echoid-s2950" xml:space="preserve">g. </s>
            <s xml:id="echoid-s2951" xml:space="preserve">ſpecubus, cum funi-
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            culus ex centro circuli, per eius ſuperficiem, trahi commo-
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            de nequit, ea propter relinque funem ſecundum directio-
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            nem ſpecus porrectum, et ſupra eum circulum horizonta-
              <lb/>
            lem fige, ut centrum eiusdem funi immineat, deinceps
              <lb/>
            perpendiculum, in funem apice ſuo cadens, iuxta circuli
              <lb/>
            peripheriam, demitte, et nota in peripheria horam uel ho-
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            rae partem, quam perpendiculi filum ſtringit, eamque ha-
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            be pro angulo conuerſionis funiculi in mundi partem. </s>
            <s xml:id="echoid-s2952" xml:space="preserve">nam
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            linea illius plagae horizontalis, ex centro orbis educta, per
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            filum perpendiculi eſſet tranſitura. </s>
            <s xml:id="echoid-s2953" xml:space="preserve">Pari ratione operare
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            in ſpecubus ſurgentibus.</s>
            <s xml:id="echoid-s2954" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2955" xml:space="preserve">7. </s>
            <s xml:id="echoid-s2956" xml:space="preserve">De modo, in charta repraeſentandi ſpecuum ita
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            menſuratorum axes, infra agetur.</s>
            <s xml:id="echoid-s2957" xml:space="preserve"/>
          </p>
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        <div xml:id="echoid-div112" type="section" level="1" n="80">
          <head xml:id="echoid-head99" xml:space="preserve">SCHOLION I.</head>
          <p>
            <s xml:id="echoid-s2958" xml:space="preserve">55. </s>
            <s xml:id="echoid-s2959" xml:space="preserve">Hanc metiendi fodinas praxin germani uocant, das abziehen
              <lb/>
            derer Gebäude, item den Gruben-Zug.</s>
            <s xml:id="echoid-s2960" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div113" type="section" level="1" n="81">
          <head xml:id="echoid-head100" xml:space="preserve">SCHOLION II.</head>
          <p>
            <s xml:id="echoid-s2961" xml:space="preserve">56. </s>
            <s xml:id="echoid-s2962" xml:space="preserve">Ut modus inſcribondi in indices numeros angulorum, funicu-
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            lorum, horarum, una cum eorundem reſolutione, clarius in-
              <lb/>
            telligatur, non abs re uidetur, peculiari problemate de hoc argu-
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            mento agere.</s>
            <s xml:id="echoid-s2963" xml:space="preserve"/>
          </p>
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