First And Second Annual Report of Progress By the State Geologist And the Assistant And Chemist On the Geological Survey of the State of Iowa

Cover First And Second Annual Report of Progress By the State Geologist And the Assistant And Chemist On the Geological Survey of the State of Iowa
First And Second Annual Report of Progress By the State Geologist And the Assistant And Chemist On the Geological Survey of the State of Iowa
Iowa Geological Survey
"Errata," 1 £., inserted before p. [281] Charles A. White, state geologist; O. H. St. John, assistant state geologist; Gustavus Hinrichs, chemist

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