Amur Region, Steam-Shovel In the Broken Hill Silver Mine.... 158 Andrevrs, E. C Anthropomorphism In Petrography...Tuyere. .. 392 Austin, L. S 893 Costs at the Osceola Mine Ditto 592 Ditto Costs of Lake Superior Smelting...for the Superintendent, Mine Harold Wilson A. Cressy Morrison Acetylene Mine-Lamps Adams, W. J O ...Bascom's Tramway E. C. Andrews. Broken Hill Silver Mine Bromo-Cyanogen Process, Chemistry of. .S. H. Worrell...12S fiVi Charles Walter Geddes Calabacillas Gold Mine L. S. Austin.... 750 Calcines, Furnaces for Melting |