earth or sand is found on the slopes of mountains or hills , or in the level fields which are either devoid of streams or into which a stream cannot be diverted , miners have lately begun to employ the following method of washing , even in the winter months . An open box is constructed of planks ,…
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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_000033125008455038-158-104.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_000033125008455038-232-149.webp)
![An illustration from Historiarvm memorabilivm ex Exodo, sequentibusq́ [] libris descriptio (1558)](https://img.insideoutlibrary.com/img/200/ia-historiarvmmemor00borl-86-73.webp)
