The geology of Pennsylvania
Subtitle: a government survey: with a general view of the geology of the United States, essays on coal-formation and its fossils, and a description of the coal-fields of North America and Great Britain
By: by Henry Darwin Rogers, state geologist.
Contributors: Rogers, Henry D. 1808-1866.
Publisher: W. Blackwood and sons; J. B. Lippincott & co.
Published: 1858
Place of publication: Edinburgh; London; Philadelphia
Subjects: Geology -- Pennsylvania; Coal -- Pennsylvania