Cincinnati (Ohio). Engineering Dept.(City of Cincinnati; University of Cincinnati, Geology-Geography Library; University of Cincinnati; University of Cincinnati, Geology-Geography Library, 1912)
Cincinnati (Ohio). Engineering Dept.(City of Cincinnati; University of Cincinnati, Geology-Geography Library; University of Cincinnati; University of Cincinnati, Geology-Geography Library, 1912)
Cincinnati (Ohio). Engineering Dept.(City of Cincinnati; University of Cincinnati, Geology-Geography Library; University of Cincinnati; University of Cincinnati, Geology-Geography Library, 1912)
Cincinnati (Ohio). Engineering Dept.(City of Cincinnati; University of Cincinnati, Geology-Geography Library; University of Cincinnati; University of Cincinnati, Geology-Geography Library, 1912)
Cincinnati (Ohio). Engineering Dept.(City of Cincinnati; University of Cincinnati, Geology-Geography Library; University of Cincinnati; University of Cincinnati, Geology-Geography Library, 1912)
Cincinnati (Ohio). Engineering Dept.(City of Cincinnati; University of Cincinnati, Geology-Geography Library; University of Cincinnati; University of Cincinnati, Geology-Geography Library, 1912)
Cincinnati (Ohio). Engineering Dept.(City of Cincinnati; University of Cincinnati, Geology-Geography Library; University of Cincinnati; University of Cincinnati, Geology-Geography Library, 1912)
Cincinnati (Ohio). Engineering Dept.(City of Cincinnati; University of Cincinnati, Geology-Geography Library; University of Cincinnati; University of Cincinnati, Geology-Geography Library, 1912)
Cincinnati (Ohio). Engineering Dept.(City of Cincnnati; University of Cincinnati, Geology-Geography Library; University of Cincinnati; University of Cincinnati, Geology-Geography Library, 1912)
Cincinnati (Ohio). Engineering Dept.(City of Cincinnati; University of Cincinnati, Geology-Geography Library; University of Cincinnati; University of Cincinnati, Geology-Geography Library, 1912)
Cincinnati (Ohio). Engineering Dept.(City of Cincinnati; University of Cincinnati, Geology-Geography Library; University of Cincinnati; University of Cincinnati, Geology-Geography Library, 1912)
Goldthwait, Richard P., White, George W., Forsyth, Jane L.(Geological Survey (U.S.); Ohio. Department of Natural Resources. Division of Water; Ohio. Department of Natural Resources. Division of Geological Survey, 1961)