Sketch of the Geology of North America, being the Substance of a Memoir read before the Ashmolean Society Nov. 26, 1838.
First Edition. Oxford, Printed by T. Combe / The Ashmolean Society, 1839. Octavo. Frontispiece [Folded map of the eastern half of North America], XVIII, 73 pages. Original Softcover / Original printed wrappers in custom made cloth-case (see images). Content-Page detached and loosely inserted. Otherwise this publication is in its very rare original state and in excellent condition with only minor signs of external wear.