iddle of it there is a cross groove , in which the particles of pure gold or silver settle , while the grains of sand , since they are lighter , flow out of it . In some parts of Moravia , gold ore , which consists of quartz mixed with gold , is placed under the stamps and crushed wet . When… … A — Stamps . B — Mortar . C — Plates full of holes . D — Transverse launder . E — Planks full of cup - like depressions . F — Spout . G — Bowl into which the CONCENTRATES FALL . H — CANVAS STRAKE . I — BOWLS SHAPED LIKE A SMALL BOAT . K — Settling - pit under the canvas strake . So far I have…
e-rara · Eisenbibliothek Schlatt · No known copyright restrictions. Free to use for anything.
![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_000033125008455038-272-186.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_000033125008455038-485-308.webp)
![An illustration from Cosmographey oder beschreibung aller Länder/ Herrschafften/ fürnem[m]sten Stetten/ geschichten/ gebreüchen/ handtierungen, [et]c. (1574)](https://img.insideoutlibrary.com/img/200/heidelberg-muenster1574-659-1.webp)
