Agricola, Georg, De re metallica Libri XII, Quibus Officia, Instrumenta, Machinae, ac omnia ..., 1556
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              parietes diſtincti: qua ratione alius ab alio aberit pedes duos & dimidium. </s>
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                <lb/>
              In eius ſuperius incluſa ſint bacilla ferrea, quæ
                <expan abbr="ſuſtineãt">ſuſtineant</expan>
              laminas ferreas, lon
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              gas & latas pedes tres, craſſas
                <expan abbr="digitũ">digitum</expan>
              , ut & ollarum graue onus & ignis uim
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              ſuſtinere poſſint: earum quæque in medio habeat foramen rotundum, quod
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              latum ſit ſeſquidigitum: quia uerò nec plures quàm octo eſſe poſſunt, eis to
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              tidem ollæ in fundo perforatæ ſuperponantur, totidem integræ ſupponan
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              tur: illæ contineant miſta, & operculis tegantur. </s>
              <s id="N1FDAD">Hæ aquas, & earum ora ad
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              laminas pertineant: miſta lignis, circa ſuperiores ollas poſitis & accenſis, co
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              cta ſtillant ſulfure rubro, uel luteo, uel uiridi: quod per foramina
                <expan abbr="defluẽs">defluens</expan>
              ex­
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              cipiunt ollæ laminis ſuppoſitæ: quarum aqua mox refrigeſcit: ſi in miſtis in
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              eſt metallum, ea reſeruata excoquuntur: ſi minus, abijciuntur. </s>
              <s id="N1FDBC">Veruntamen
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              ſulfur ex iſtiuſmodi miſtis optime poterit elici, ſi ollæ ſuperiores ſic in forna
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              ce concamerata locatæ fuerint, ut illæ, de quibus libro octauo, cum eandem
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              rem metalli, quod in eis ineſt, cauſa tractarem, dixi, ut eædem fundo carue­
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              rint, inque eas cancelli fuerint impoſiti: inferiores uerò eis hoc modo ſuppoſi
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              tæ fuerint: ſed laminam quanque amplius habere foramen oportet.</s>
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            <p id="N1FDC9" type="caption">
              <s id="N1FDCB">M
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              urus longus
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              A. M
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              uri alti
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              B. M
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              uri humiles
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              C. L
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              aminæ
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              D.
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              O
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              llæ ſuperiores
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              E. O
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              llæ inferiores
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              F.</s>
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