Mines and mineral resources. Article, "The Anthracite Coal Fields." Rep. Jan. 11, 1882 p.6 c.l Article, "The Hamilton Process;" description. Rep. Jan. 20, 1882 p.6 c.l Article, "Mexican Mining" reduction done in Colo. Rep. Feb. 10, 1882 p.6 c.l Article, "Precious Metal Mining Investments." Rep. Feb. 15, 1882 p.6 c.l Star Metal, a substitute for lead; its uses; list. Rep. Feb. 16, 1881 p.6 c.l