GIA4807365 Geology: cutting the earth\'s bark explaining the exit of fire from the earth. Engraving from ???undi Mirabilis Oeconomia??????by Johann Zahn (1631-1707), 1696 Milanese . by Unknown Artist, (17th century); Private Collection; (add.info.: Geology: cutting the earth\'s bark explaining the exit of fire from the earth. Engraving from ???undi Mirabilis Oeconomia??????by Johann Zahn (1631-1707), 1696 Milanese .); by Giancarlo Costa.