BOOK XI . … purposes and use of those who separate silver from copper , is constructed in this manner . First , four long walls are built , of which the first , which is parallel with the bank of a stream , and the second , are both two hundred and sixty - four feet long . The second , however , stops at one…
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![An illustration from The Chronicle of Clemendy; or, the history of the IX. Joyous Journeys. In which are contained the ... facetious tales of Master Gervase Perrot ... done into English [or rather, written] by A. Machen (1888)](https://img.insideoutlibrary.com/img/200/bl-bl_002876441_0-15-2.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_000033125008455038-408-269.webp)
