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Questions before ordering? Use this form to request more information from Eryops Books About Survey Publications on Antimony, Chromium, Monazite, Nickel, Platinum, Quicksilver, Tin, Tungsten, Uranium, Vanadium, etc. (pp. 547-549) AND Survey Publications on Asphalt (p. 550) (FROM: Contributions to Economic Geology, Short Papers and Preliminary Reports. 1912. Part I. Metals and Nonmetals except Fuels. United States Geological Survey Bulletin 540)..