12915041 - Georgius Agricola, German physician and metallurgist12960031 - Agricola Smelting of Metals12903317 - Georgius Agricola, German physician and metallurgist11827113 - Portrait of Georgius Agricola,German mineralogist12960034 - Agricola Mine Surveying12960030 - Agricola Mine Surveying12960035 - Agricola Smelting of Metals12654325 - Georgius Agricola, De Re Metallica, Triangulation12915040 - Georgius Agricola, German physician and metallurgist12960038 - Agricola Mine Surveying12960033 - Agricola Smelting of Metals12050868 - Georgius Agricola,German mineralogist12631365 - Georgius Agricola, Father of Mineralogy11653683 - Rodolphus Agricola,Dutch scholar11576647 - Rodolphus Agricola,Dutch humanist12654350 - Georgius Agricola, De Re Metallica, Triangulation11827203 - Georgius Agricola,German mineralogist12899824 - Prospecting for metals, 155611721477 - Sinking mine shafts11721476 - Steel production11721481 - Reversible hoist for raising buckets11721478 - Draining mine11721484 - Smelting iron11721483 - Refining copper11721480 - Crushing gold bearing ores11726549 - Touch needles12899820 - Making and using elm tree pumps to drain mines, 155611726546 - Crane for lifting of copper lead alloy11726547 - Refining copper in a furnace11726548 - Furnace for refining copper11687452 - Map of Roman Britain11721488 - Mine shafts and galleries12042833 - De Re Metallica,Cupellation Furnaces12042832 - De Re Metallica,Cupellation Furnaces12042834 - De Re Metallica,Ventilation of Mines11606726 - Spiders of Britain and Northern Europe12915653 - Stamp for breaking copper cupellation cakes12915256 - Smelting iron and hammering bars with a mechanical hammer12915251 - Crushing gold bearing ores in mills12915654 - Stamping and roasting ore to extract metal, 155612915236 - A mine being drained by a rag-and-chain pump12915252 - Reversible hoist for raising buckets from a mine shaft12915260 - Sectional view of a mine showing shafts and galleries, 155612915255 - Refining copper: removing cakes of copper from the crucible12915249 - Draining a mine using suction pumps powered by a water wheel12903762 - Producing salt by evaporating natural brine, 155611827053 - Portrait of Georgius Agricola,1494-155512915250 - Washing for tin, 155612916420 - Smelting of ores (gold, silver, copper and lead), 155612916339 - The Argonauts finding the Golden Fleece, 155612915305 - Bellows supplying draught to a smelting furnace, 155612916419 - Lead smelting, 155612916165 - Roasting copper ore in a furnace at C, 155612915655 - Blast furnace for smelting iron ore, 155611832973 - Diviners finding minerals12915248 - Sectional view of a German mine, 155612915247 - Steel production: a forge with bellows to produce draught12916418 - Separating lead from silver or gold in a cupellation furnace12916169 - Pump powered by men in a treadmill, 1556