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

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    <archimedes>
      <text>
        <body>
          <chap id="N10018">
            <p id="N14F87" type="main">
              <s id="N151EE">
                <pb pagenum="193" xlink:href="001/01/203.jpg"/>
              propter uim liqueſcendi, quæ ineſt in ſpuma argenti, recrementum exſuda­
                <lb/>
              uerit, eximunt: refrigeratam à recremento purgant, rurſusque eam comminu
                <lb/>
              unt: cum eius centumpondio ſeſcuntiam globulorum
                <expan abbr="plumbeorũ">plumbeorum</expan>
              miſcent:
                <lb/>
              inijciunt in alterum catillum fictilem: quem ſub tegulam ardentis fornacu­
                <lb/>
              læ collocant adijcientes ad miſturam
                <expan abbr="paucũ">paucum</expan>
              puluerem alicuius additamen­
                <lb/>
              ti compoſiti, quod uenas liquefacit: liquatam eximunt: refrigeratam à
                <expan abbr="recre­mẽto">recre­
                  <lb/>
                mento</expan>
              purgant. </s>
              <s id="N15221">Poſtremò eam
                <expan abbr="coquũt">coquunt</expan>
              in catillo cinereo, quoad omne plum
                <lb/>
              bum exhalauerit, ſolumque argentum remanſerit. </s>
              <s id="N1522A">Nigri autem plumbi
                <expan abbr="uenã">uenam</expan>
                <lb/>
              iſto modo experiri conuenit: lapidis plumbarij puri ſemunciam, & chryſo­
                <lb/>
              collæ, quam boracem uocant, tantundem
                <expan abbr="cõminuito">comminuito</expan>
              , permiſceto, in
                <expan abbr="catillũ">catillum</expan>
                <lb/>
              fictilem inijcito, carbonem
                <expan abbr="ardentẽ">ardentem</expan>
              in media eius parte collocato: quampri­
                <lb/>
              mum chryſocolla crepuerit, & lapis plumbarius liquefactus fuerit, quod ci­
                <lb/>
              to eis accidit, carbonem à catillo amoueto: & in ipſius fundo plumbum reſ
                <lb/>
              debit: quod expendito: & eius portionem, quam ignis conſumpſit, ad calcu
                <lb/>
              los reuocato. </s>
              <s id="N1524B">Si uerò etiam ſcire uolueris, quota argenti particula in plum­
                <lb/>
              bo inſit, id in catillo cinereo excoquito, uſque dum omne plumbum exhalet. </s>
              <s id="N15250">
                <lb/>
              Vel uenam plumbi qualemcunque urito, lauato, ramenti lotura collecti cen­
                <lb/>
              tumpondium & pulueris compoſiti, qui uenas liquefacit, tria centumpon­
                <lb/>
              dia commiſta in catillum fictilem inijcito, & in circulum ferreum colloca­
                <lb/>
              to ut liqueſcat: refrigeratum à
                <expan abbr="recremẽto">recremento</expan>
              purgato: atque reliqua, ut
                <expan abbr="dictũ">dictum</expan>
              eſt,
                <lb/>
              perficito. </s>
              <s id="N15264">Vel accipito uenæ præparatæ uncias duas, æris uſti drachmas
                <lb/>
              quinque, uitri aut recrementi eius in puluerem redacti unciam unam, ſalis
                <expan abbr="ſe­mũciam">ſe­
                  <lb/>
                munciam</expan>
              , & miſceto: atque miſturam in
                <expan abbr="catillũ">catillum</expan>
              triangularem conijcito, eumque
                <lb/>
              lento igni calefacito ne
                <expan abbr="diſrũpatur">diſrumpatur</expan>
              . </s>
              <s id="N15279">Vbi miſtura liquefacta fuerit ignem fol­
                <lb/>
              le magis excitato: deinde ex prunis eximito catillume, t ſinito refrigeſcere in
                <lb/>
              aere: aqua uerò non perfudito, ne plumbi maſſula nimio frigore commota
                <lb/>
              cum recrementis miſceatur: atque ſic experimentum fiat falſum: poſtquam au
                <lb/>
              tem catillus refrixerit, in eius fundo inuenies maſſulam plumbeam. </s>
              <s id="N15284">Vel acci
                <lb/>
              pito uenæ uncias duas, ſpumæ argenti
                <expan abbr="ſemunciã">ſemunciam</expan>
              , uitri Venetiani drachmas
                <lb/>
              duas, halinitri ſemunciam. </s>
              <s id="N1528F">Quod ſi uena difficulter excoquitur, ad eam ad­
                <lb/>
              ijcito ſcobem ferri elimatam, quæ, quia ualde calefacit,
                <expan abbr="purgamẽta">purgamenta</expan>
              facile ſe­
                <lb/>
              cernit à plumbo ac reliquis metallis. </s>
              <s id="N1529A">Quinetiam uena plumbi nigri, ut con­
                <lb/>
              uenit, præparata conijcitur in catillum, & ſolum ad eam adijciuntur arenæ à
                <lb/>
              lapide facile liqueſcente reſolutæ, aut ſcobs ferri elimata, & experimentum
                <lb/>
              perficitur. </s>
              <s id="N152A3">Venam uerò plumbi candidi hac ratione experiri poteris: eam
                <lb/>
              primò urito, deinde comminuito, tum lauato: ramentum lotura collectum
                <lb/>
              rurſus urito, comminuito, lauato: eius centumpondium unum &
                <expan abbr="dimidiũ">dimidium</expan>
                <lb/>
              cum chryſocollæ, quam boracem nominant, centumpondio
                <expan abbr="cõmiſceto">commiſceto</expan>
              : ex
                <lb/>
              miſtura, aquis madefacta, maſſulam formato, poſtea carbonem magnum &
                <lb/>
              teretem perforato. </s>
              <s id="N152B8">Foramen
                <expan abbr="aũt">aut</expan>
              altum ſit palmum, ſuperius latum digitos
                <lb/>
              tres, inferius anguſtum: hoc, cùm collocatur carbo, inferiorem locum, illud
                <lb/>
              ſuperiorem occupet. </s>
              <s id="N152C3">Collocetur uerò in catinum fictilem, & undique ad eum
                <lb/>
              apponantur carbones ardentes. </s>
              <s id="N152C8">Vbi uerò carbo perforatus ignem conce­
                <lb/>
              perit, maſſula in ſuperius eius foramen imponitur, & lato carbone ardente
                <lb/>
              tegitur: atque pluribus e arbonibus circum eum appoſitis folle acris ignis ex­</s>
            </p>
          </chap>
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