first put small dried sticks of fir wood , then over them they throw broken ore ; then they lay more wood over it , and when the wind blows they kindle it . In this manner the bismuth drips out of the ore , and afterward the ashes of the wood consumed by the fire and the charcoals are swept away .… … A — Hearth in which ore is melted . B — Hearth on which lie drops of bismuth . C — Tongs . D — Basket . E — Wind . Others again make a box eight feet long , four feet wide , and two feet high , which they fill almost full of sand and cover with bricks , thus making the hearth . The box has in the…
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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_000033125008455038-367-247.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_000033125008455038-234-151.webp)
![An illustration from Omnia D. And. Alciati Emblemata : ad qvae singula praeter concinnas acutásque inscriptiones, lepidas & expressas imagines, ac caetera omnia, quae prioribus nostris editionibus cùm ad eorum distinctionem, tum ad ornatum & correctionem adhibita continebantur, : nunc primùm perelegantia persubtiliaq́ [ue] (1564)](https://img.insideoutlibrary.com/img/200/ia-omniadandalciati00alci-34-36.webp)
