Georg Bauer, better known as Agricola, spent most of his adult life as a
physician in the mining region of Joachimsthal in Bohemia. There he observed
first-hand every aspect of mines, mining, and minerals. His subjects include,
among other things, administration, prospecting, equipment, diseases of the
lung, ventilation, ore transportation, soil erosion, and descriptions of eighty
different minerals and metallic ore. The book contains 273 splendid woodcuts by
Rudolf Manuel Deutsch.