Agricola, Georg, De re metallica Libri XII, Quibus Officia, Instrumenta, Machinae, ac omnia ..., 1556

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        <body>
          <chap id="N10018">
            <p id="N1BD18" type="main">
              <s id="N1BD93">
                <pb pagenum="368" xlink:href="001/01/378.jpg"/>
              habet pares portiones ſulfuris ignem non experti, ſalis ammoniaci, halini­
                <lb/>
              tri, æruginis. </s>
              <s id="N1BD9D">Argentum autem, in quo ineſt aliqua auri portio, primò unà
                <lb/>
              cum
                <expan abbr="plũbo">plumbo</expan>
              liquefiat in catino fictili, atque ſimul
                <expan abbr="coquãtur">coquantur</expan>
              uſque
                <expan abbr="dũ">dum</expan>
                <expan abbr="argentũ">argentum</expan>
              ex
                <lb/>
              halet
                <expan abbr="plumbũ">plumbum</expan>
              : ſi argenti fuerit libra, plumbi ſint drachmæ ſex: tum
                <expan abbr="argẽtum">argentum </expan>
                <lb/>
              aſpergatur aliquo de iſtis pulueribus
                <expan abbr="cõpoſitis">compoſitis</expan>
              , qui pendat uncias duas: de­
                <lb/>
              in agitetur: poſtea effundatur in alterum catinum prius calefactum & ſeuo
                <lb/>
              illitum: isque concutiatur: cætera perficiantur ratione iam explicata. </s>
              <s id="N1BDC6">Quineti
                <lb/>
              am aurum ab argenteis poculis, alijsque uaſculis & operibus inauratis inte­
                <lb/>
              gris manentibus ſeparatur puluere, qui conſtat ex ſalis ammoniaci parte u­
                <lb/>
              na, ſulfuris dimidia: poculum, ſiue aliud opus, inauratum oleo illinitur: ei in
                <lb/>
              ſpergitur puluis: manu uel forcipe prehenſum admouetur igni, concutitur:
                <lb/>
              quo modo aurum decidit in aquam uaſis ſubiecti,
                <expan abbr="poculũ">poculum</expan>
              manet illæſum. </s>
              <s id="N1BDD7">
                <lb/>
              Separatur etiam aurum ab argenteis operibus inauratis argento uiuo: id in
                <lb/>
              fundatur in
                <expan abbr="catinũ">catinum</expan>
              fictilem, & igni ſic calefiat ut digitus, in ipſum immiſſus,
                <lb/>
              calorem ſuſtinere poſſit: in eo argenteum opus inauratum collocetur: cùm
                <lb/>
              ad ipſum
                <expan abbr="argẽtum">argentum</expan>
              uiuum adhæſerit
                <expan abbr="exemptũ">exemptum</expan>
              imponatur in lancem: in
                <expan abbr="quã">quam</expan>
                <lb/>
              aurum refrigeratum unà cum argento uiuo decidit. </s>
              <s id="N1BDF3">Iterum uerò & ſæpius
                <lb/>
              idem
                <expan abbr="argenteũ">argenteum</expan>
              opus
                <expan abbr="inauratũ">inauratum</expan>
              in argento uiuo calefacto collocetur: idemque
                <lb/>
              labor ſuſcipiatur uſque ad eum finem dum nullum aurum appareat in opere,
                <lb/>
              cùm in ignem impoſitum fuerit, & ex eo argentum uiuum, quod ad ipſum
                <lb/>
              adhæſit, euolarit: mox artiſex capiat pedem
                <expan abbr="leporinũ">leporinum</expan>
              , atque conuerrat argen­
                <lb/>
              tum uiuum & aurum: quæ ſimul ex opere argenteo deciderunt in lancem:
                <lb/>
              caque infundat in linteum, lini xylini contextu factum, uel in alutam: per
                <expan abbr="illũ">illum</expan>
                <lb/>
              uel hanc argentum uiuum expreſſum altera lance excipiatur. </s>
              <s id="N1BE14">Aurum uerò
                <lb/>
              in linteo uel aluta remanebit: quod collectum in carbonem excauatum inij
                <lb/>
              ciat & coquat donec liqueſcat, & ex eo maſſula fiat: quam cum pauco ſtibio
                <lb/>
              coquat in catino fictili: eaque in alterum uaſculum infundat: quo modo
                <expan abbr="aurũ">aurum</expan>
                <lb/>
              in fundo reſidere, ſtibium tenere ſuperiorem locum uidebit: tum eundem la
                <lb/>
              borem ſumat: poſtremò aureas maſſulas in
                <expan abbr="laterẽ">laterem</expan>
                <expan abbr="excauatũ">excauatum</expan>
              conijciat, eumque
                <lb/>
              in igni collocet: qua ratione aurum fit purum. </s>
              <s id="N1BE2F">Atque his modis aurum ab
                <lb/>
              argento, uel contra argentum ab auro ſecernitur: nunc exponam rationes,
                <lb/>
              quibus æs ab auro ſeparatur. </s>
              <s id="N1BE36">Sal, quem uocamus artificioſum, conficitur ex
                <lb/>
              atramenti ſutorij, aluminis, halinitri, ſulfuris ignem non experti
                <expan abbr="ſingulorũ">ſingulorum</expan>
              li
                <lb/>
              bra, ſalis ammoniaci ſelibra: quæ res
                <expan abbr="cõminutæ">comminutæ</expan>
              coquantur ex lixiuio facto
                <lb/>
              ex cineris, quo lanarum infectores utuntur, parte una, calcis aqua non reſtin
                <lb/>
              ctæ item parte una, cineris fagini partibus quatuor. </s>
              <s id="N1BE49">Res autem ex hoc lixi­
                <lb/>
              uio coquantur uſque dum totum conſumatur: mox ſiccentur & reponantur
                <lb/>
              in loco calido, ne in oleum uertantur: deinde cum eis
                <expan abbr="cõminutis">comminutis</expan>
              plumbi, in
                <lb/>
              cinerem reſoluti, libra permiſceatur: atque huius pulueris compoſiti ſingulæ
                <lb/>
              ſeſcunciæ ſingulis æris, in catino calefacti, libris paulatim inſpergantur: ac ſi
                <lb/>
              lo ferreo multum & celeriter agitentur: catino refrigerato & confracto au­
                <lb/>
              rea maſſula reperitur. </s>
              <s id="N1BE5C">Altera ſecernendi ratio hæc eſt: ſulfuris ignem non ex
                <lb/>
              perti libræ duæ, ſalis facticij purgati quatuor
                <expan abbr="cõminuantur">comminuantur</expan>
              & commiſcean­
                <lb/>
              tur: huius pulueris ſextans & ſemuncia adijciantur ad beſſem globulorum
                <lb/>
              confectorum ex plumbo, et ære, in quo ineſt aurum, plumbi duplo: ſimulque </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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