“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 ; To Which Are Added, A Supplement, Or a Comparative View of the Former Method of Melting and Refining ; And An Address to the Subscribers, Giving an Account of Its Latest Improvements, and of the Quicksilver Trade