| http://www.w3.org/ns/prov#value | - metals and nonmetals except fuels -- Nickel, Uranium, etc.; Lead and Zinc: Bulletin 315-C, p. 110-129, Gannett, Samuel Stinson, 1907, Results of primary triangulation and primary traverse, fiscal year 1905-6: U.S. G.P.O., Bulletin 310, 248 p. :maps (some fold.), charts ;24 cm., Gilbert, Grove Karl; Hall, William Carvel, 1907, Rate of recession of Niagara falls, accompanied by a report on the surv
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