when it used formerly to be produced at Puteoli from lead alone when melted by a fierce fire in the cupellation furnace . 8 Afterward these cakes of lead are carried into the lead store - room . The cakes of copper , put into wheelbarrows , are carried into the third part of the building , where… … A — Block of wood . B — Upright posts . C — Transverse beams . D — Head of the stamp . E — Its tooth . F — The hole in the stamp - stem . G — Iron bar . H — Masses of lead . I — The bronze saddle . K — Axle . L — Its arms . M — Little iron axle . N — Bronze pipe . wide and thick ; it is cut out in…
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![An illustration from Georgii Agricolae De re metallica : libri XII. Quibus officia, instrumenta, machinae, ac omnia deni[que] ad metallicam spectantia, non modo luculentissimè describuntur, sed & per effigies, suis locis infertas, adiunctis latinis, germanicis [que] appellationibus ita ob oculos ponuntur, ut clarius tradi non possint. ; Eiusdem De animantibus subterraneis liber, (1556)](https://img.insideoutlibrary.com/img/200/ia-gri_000033125008455038-228-145.webp)
![An illustration from Georgii Agricolae De re metallica : libri XII. Quibus officia, instrumenta, machinae, ac omnia deni[que] ad metallicam spectantia, non modo luculentissimè describuntur, sed & per effigies, suis locis infertas, adiunctis latinis, germanicis [que] appellationibus ita ob oculos ponuntur, ut clarius tradi non possint. ; Eiusdem De animantibus subterraneis liber, (1556)](https://img.insideoutlibrary.com/img/200/ia-gri_000033125008455038-420-272.webp)
