Joannis Conradi Barchusen Pyrosophia, succinte atque breviter iatro-chemiam, rem metallicam et chrysopoeiam pervestigans... Lugduni Batavorum: impensis Cornelii Boutestein, 1698. Plate 5 (opp. p. 387)
Metallurgy; mining. Figure "A" represents the purification of silver through burning; figure "E" represents a machine with moveable piles for the crushing of ores. Purification of silver through burning. Table 5 of Barchusen's Pyrosophia (London 1698); reprinted in Elementa Chemiae (London 1718).
Collection:
Edgar Fahs Smith Image Collection (University of Pennsylvania)
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