Whittlesey, Charles, 1808-1886. The physical geology of eastern Ohio. By Colonel Charles Whittlesey. - Boston, Printed at the Riverside Press, Cambridge, 1869. - 1 p. l., 588-597 p. map, diagrs. 29 cm. LCCN: gs 05000863 Subjects--Topical Terms: Geology--Ohio. LC Class. No.: QE151 / .W65