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Baron Inigo Born's new process of amalgamation of gold and silver ores, and other metallic mixtures : as, by his late Imperial Majesty's commands, introduced in Hungary and Bohemia
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Baron Inigo Born's new process. of amalgamation of gold and silver ores, and other metallic mixtures, ... from the Baron's account in German, translated into English by R. E. Raspe. With twenty-two copper-plates. To which are added, a supplement, ... and an address to the subscribers
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