Sample Sub-community http://hdl.handle.net/1811/460 Short description 2013-05-26T05:25:04Z Report of the Geological Survey of Ohio[electronic resource] http://hdl.handle.net/1811/5842 Report of the Geological Survey of Ohio[electronic resource] Geological Survey of Ohio Text made available in compliance with Section 108 of the Copyright Revision Act of 1976 1906-01-01T00:00:00Z Geological Survey of Ohio