Agricola, Georg, De re metallica Libri XII, Quibus Officia, Instrumenta, Machinae, ac omnia ..., 1556
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              <s id="N20139">Secunda fornax rotunda & lata pedes decem, alta octo, extrinſecus, ut ſit
                <lb/>
              firmior, cingatur quinque arcubus ſeſquipedem craſſis: ea item conſtet ex du
                <lb/>
              abus cameris: quarum inferioris teſtudo ſit craſſa ſeſquipedem: ipſa camera
                <lb/>
              habeat à fronte os anguſtum, ut ligna in focum, qui eſt in eius ſolo, imponi
                <lb/>
              poſſint: in ſumma uerò & media eiuſdem teſtudine
                <expan abbr="magnũ">magnum</expan>
              foramen rotun­
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              dum: quod ab ea pateat ad ſuperiorem cameram, ut flammæ in ipſam pene­
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              trare poſſint. </s>
              <s id="N2014C">At in ſuperioris cameræ muro inter arcus ſint octo feneſtræ
                <lb/>
              tantæ, ut per eas ollæ uentroſæ in ſolo cameræ circum
                <expan abbr="magnũ">magnum</expan>
              foramen col­
                <lb/>
              locari poſſint: quarum ollarum craſſitudo ſit ad digitos duos, altitudo ad to
                <lb/>
              tidem pedes, latitudo uentris ad ſeſquipedem, oris & fundi ad pedem. </s>
              <s id="N20159">In po
                <lb/>
              ſteriori fornacis parte ſit foramen quadrangulum, cuius altitudo atque etiam
                <lb/>
              latitudo ad palmum: per quod calor penetret in tertiam fornacem, cum hac
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              coniunctam: ea quadrangula & longa pedes octo, lata ſex ſimiliter conſtet
                <lb/>
              ex duabus cameris: quarum inferior à fronte habeat os, ut ligna in
                <expan abbr="focũ">focum</expan>
              , qui
                <lb/>
              etiam eſt in eius ſolo, imponi poſſint: ab utroque oris latere in muro ſit oblon
                <lb/>
              gi uaſis fictilis receptaculum, longum circiter pedes quatuor, altum duos, la
                <lb/>
              tum ſeſquipedem. </s>
              <s id="N2016E">Superior uerò camera habeat duo foramina,
                <expan abbr="alterũ">alterum</expan>
              à dex­
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              tro latere, alterum à ſiniſtro, tam lata & alta, ut uaſa illa commode in eam im
                <lb/>
              poni poſſint: quæ uaſa ſint longa pedes tres, alta ſeſquipedem, lata inferiori
                <lb/>
              parte pedem, ſuperiori
                <expan abbr="rotũdata">rotundata</expan>
              : in his opera uitrea iam conflata recondan­
                <lb/>
              tur, ut mitiori calore
                <expan abbr="refrigerẽtur">refrigerentur</expan>
              : quæ ni ita paulatim fuerint refrigerata, diſ
                <lb/>
              rumpuntur. </s>
              <s id="N20187">Deinde uaſis iſtis ex ſuperiori camera extractis & repoſitis in
                <lb/>
              receptaculis prorſus refrigerentur.</s>
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            <p id="N2018C" type="caption">
              <s id="N2018E">S
                <emph type="italics"/>
              ecundæ fornacis arcus
                <emph.end type="italics"/>
              A. E
                <emph type="italics"/>
              ius cameræ inſerioris os
                <emph.end type="italics"/>
              B.
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              F
                <emph type="italics"/>
              eneſtræ ſuperioris cameræ
                <emph.end type="italics"/>
              C. O
                <emph type="italics"/>
              llæ uentroſæ
                <emph.end type="italics"/>
              D. T
                <emph type="italics"/>
              er/
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              tiæ fornacis os
                <emph.end type="italics"/>
              E. R
                <emph type="italics"/>
              eceptacula uaſorum
                <emph.end type="italics"/>
              F. F
                <emph type="italics"/>
              oramina
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              ſuperioris cameræ
                <emph.end type="italics"/>
              G. V
                <emph type="italics"/>
              aſa oblonga
                <emph.end type="italics"/>
              H.</s>
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