Bericht über die Geologische aufnahme von Ohio ...

Geological Survey of Ohio

by Ohio. Chief Geologist

1887

Geological Survey of Ohio

by John Strong Newberry, Ohio. Chief Geologist

1871

Geological Survey of Ohio

by Geological Survey of Ohio

1871

Geological Survey of Ohio. Part I. Report of Progress in 1869 (1870). By J.S. Newberry, Chief Geologist, Etc. Part II. Report of Progress in the Second District, by E.B. Andrews. Part III. Report on Geology of Montgomery County, by E. Orton. [With Maps.].

by OHIO, State of. Geological Survey, Ebenezer Baldwin ANDREWS, John Strong NEWBERRY (Geologist.)

1871