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 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 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)