Guidebook of the Western United States: Part E. The Denver & ...

The Magnetic Iron Ores of East Tennessee and Western North ...

Magnetic Iron Ores of East Tennessee and Western North Carolina

Deposits of Brown Iron Ores (brown Hematite) in Western ...

Magnetic Iron Ores of East Tennessee and Western North Carolina

Deposits of Brown Iron Ores: (brown Hematite) in Western ...

Administrative Report of the State Geologist, 1920: ...

Catalogue of the Maine Geological Collection: With a Brief ...

Iron Mines and Mining in New Jersey

The Eruptive and Sedimentary Rocks on Pigeon Point, ...