Agricola, Georg, De re metallica Libri XII, Quibus Officia, Instrumenta, Machinae, ac omnia ..., 1556
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      <text>
        <body>
          <chap id="N10018">
            <pb pagenum="167" xlink:href="001/01/177.jpg"/>
            <figure id="id.001.01.177.1.jpg" xlink:href="001/01/177/1.jpg" number="55"/>
            <p id="N14135" type="main">
              <s id="N14137">Sin halitus graues follibus è cuniculis hauriendi fuerint,
                <expan abbr="plerũque">plerunque</expan>
              tres du­
                <lb/>
              plicati uel triplicati, naribus carentes & priore parte clauſi, in ſedilibus col­
                <lb/>
              locantur: quos operarius non aliter pedibus calcando
                <expan abbr="cõprimit">comprimit</expan>
              , ac eos qui
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              in templis ſunt ad organa, quæ uarios & dulces ſonos edunt. </s>
              <s id="N14148">Follium
                <expan abbr="autẽ">autem</expan>
                <lb/>
              quiſque graues iſtos halitus inferioris tabulati foramine ſpiritali per canalem
                <lb/>
              longum tractos foramine tabulati ſuperioris expirat uel in aerem liberum,
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              uel in aliquem puteum, uel in foſſam quampiam latentem. </s>
              <s id="N14155">Hoc foramen fo
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              riculam habet, quam flatus noxius toties aperit, quoties exit. </s>
              <s id="N1415A">Quoniam ue­
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              rò aerem follibus tractum alius continenter ſubſequitur, non grauis modo
                <lb/>
              extrahitur ex cuniculo mille & ducentos pedes longo, aut etiam longiore,
                <lb/>
              ſed ſalubris naturaliter ipſum
                <expan abbr="cõſequens">conſequens</expan>
              ii. </s>
              <s id="N14167">eundem parte eius aperta, quæ
                <lb/>
              extra canalem illum
                <expan abbr="longũ">longum</expan>
              eſt, trahitur. </s>
              <s id="N14170">Quo modo cùm aeris mutationes
                <lb/>
              fiant, foſſores laborem ſuſceptum ſuſtinere poſſunt: quod genus machinæ
                <lb/>
              ni eſſent
                <expan abbr="inuẽtæ">inuentæ</expan>
              , metallici neceſſe haberent duos cuniculos in montem age­
                <lb/>
              re, & poſt pedes ſummùm ducentos ſemper puteum ex ſuperiore cuniculo
                <lb/>
              ad inferiorem pertinentem fodere, ut aer, qui in illum influxit, in hunc pute
                <lb/>
              is deſcendens foſſoribus ſalutaris eſſe poſsit: quod ſine magno impendio
                <lb/>
              perficere non poſſent. </s>
              <s id="N14183">At duas machinas ſupradictis aſsimiles follibus equi
                <lb/>
              uerſant: quarum altera ad axem habet ligneum orbem, circumcirca gradi­</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>