Preliminary report on the iron ores and coal fields from the field work of 1872
Raphael Pumpelly, director pt. I. Geology of Pilot Knob and its vicinity by R. Pumpelly. Analyses of iron-ores, pig-irons, and fuels, by R. Chauvenet and A. A. Blair. Iron ores of Missouri, by A. Schmidt.--pt. II. Geology of northwestern Missouri, by G. C. Broadhead, and of Lincoln County, by W. B. Potter.--Appendices: A. Report on the strength of building materials, by C. A. Smith. B. Notes on such rocks of Missouri as admit of a fine polish, by G. C. Broadhead. C. List of fossils from the Coal-Measures of Missouri, collected in 1872, catalogued by C. J. Norwood. D. Schedule showing depth of coal seams below given horizons, by G. C. Broadhead. E. Map showing the boundaries of trees and shrubs, north Missouri, by G. C. Broadhead, 1858-1861
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