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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              <pb o="7" file="0123" n="128" rhead="GEOMETRIA SVBTERRANEA."/>
            dudum
              <emph style="sc">Ptolemaeo</emph>
            Magn. </s>
            <s xml:id="echoid-s2057" xml:space="preserve">Compoſ. </s>
            <s xml:id="echoid-s2058" xml:space="preserve">l. </s>
            <s xml:id="echoid-s2059" xml:space="preserve">1. </s>
            <s xml:id="echoid-s2060" xml:space="preserve">c. </s>
            <s xml:id="echoid-s2061" xml:space="preserve">8. </s>
            <s xml:id="echoid-s2062" xml:space="preserve">placuit, et
              <lb/>
            quare in eius locum ſectionem in particulas 192 receperint, illius
              <lb/>
            rei non incongruam uidentur rationem reddere, qui ſuſpicantur,
              <lb/>
            ideo id fuiſſe factum, quia in paruo circulo, cuius diameter eſt 2
              <lb/>
            vel 2 {1/2} digitorum, partes trecenteſimae et ſexageſimae nimis
              <lb/>
            euadunt minutae, ut non ſatis accurate ab apice acus monſtrentur,
              <lb/>
            partes uero octauae horarum, in exiguo eiusmodi ambitu, paulo
              <lb/>
            magis conſpicuae ſunt, ut in tenebris cryptarum candelae lumi-
              <lb/>
            ne ſatis illuſtrari poſſint. </s>
            <s xml:id="echoid-s2063" xml:space="preserve">Interim recepta illa diuiſione minutorum
              <lb/>
            192 conſtat, ſemicirculum 96, et quadrantem 48 particulas
              <lb/>
            continere.</s>
            <s xml:id="echoid-s2064" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div41" type="section" level="1" n="28">
          <head xml:id="echoid-head45" xml:space="preserve">DEFINITIO V.</head>
          <p>
            <s xml:id="echoid-s2065" xml:space="preserve">8. </s>
            <s xml:id="echoid-s2066" xml:space="preserve">Singulae horae ſex, cuiuis quadranti debitae, a plaga
              <lb/>
            proxima nomen habent. </s>
            <s xml:id="echoid-s2067" xml:space="preserve">Ita circa meridianam utrim-
              <lb/>
            que poſitae horae 12 - 3 et 9 - 12, dicuntur meridionales,
              <lb/>
            uel ſeptentrionales; </s>
            <s xml:id="echoid-s2068" xml:space="preserve">quae autem ſunt prope puncta orientis
              <lb/>
            et occidentis utrimque collocatae, a 3 - 6 et 6 - 9, orientales
              <lb/>
            et occidentales nominantur.</s>
            <s xml:id="echoid-s2069" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div42" type="section" level="1" n="29">
          <head xml:id="echoid-head46" xml:space="preserve">DEFINITIO VI.</head>
          <p>
            <s xml:id="echoid-s2070" xml:space="preserve">9. </s>
            <s xml:id="echoid-s2071" xml:space="preserve">Cauerna perpendicularis A B a ſummo ad cryptas demiſſa,
              <lb/>
              <note position="right" xlink:label="note-0123-01" xlink:href="note-0123-01a" xml:space="preserve">Figur. 1.</note>
            per quam eo deſcenditur, uel aer admittitur, vel
              <lb/>
            metalla extrahuntur, inpoſterum puteus, germ. </s>
            <s xml:id="echoid-s2072" xml:space="preserve">ein Schacht,
              <lb/>
            dicetur. </s>
            <s xml:id="echoid-s2073" xml:space="preserve">Eius amplitudo differt, prouti uel ſoli deſcenſui
              <lb/>
            deſtinatur, uel una extrahendis ex cauerna metallis et
              <lb/>
            lapidibus, machina nempe tractoria ſuper eum ſtatuta,
              <lb/>
            aptatur. </s>
            <s xml:id="echoid-s2074" xml:space="preserve">priore caſu, perticae metallicae dimidiae latus
              <lb/>
            ſufficit, altero caſu, latitudo dimidiae perticae ſeruatur,
              <lb/>
            et longuitudini pertica una additur.</s>
            <s xml:id="echoid-s2075" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div44" type="section" level="1" n="30">
          <head xml:id="echoid-head47" xml:space="preserve">DEFINITIO VII.</head>
          <p>
            <s xml:id="echoid-s2076" xml:space="preserve">10. </s>
            <s xml:id="echoid-s2077" xml:space="preserve">Cryptarum vel ſpecuum (Gruben) nomine generali in
              <lb/>
            poſterum ſignificabimus caua ſubter terram facta.</s>
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