The geology of Allegany County ...
By: by Cleophas C. O'Harra.
Publisher: [Printed by the Friedenwald company]
Published: 1900
Place of publication: Baltimore
Language: eng
Number of pages: 163
Subjects: Geology -- Maryland -- Allegany County
Notes: Thesis (PH. D.)--Johns Hopkins university, 1898.
Bibliography: p. 69-85.
Life.