Southern Pennsylvania and Maryland
By: by George W. Stose, Anna I Jonas [and] George H. Ashley
Contributors: Jonas, Anna Isabel, 1881-; Ashley, Geo. H. b. 1866; Knopf, Eleanora Frances Bliss, b. 1883; Geological Survey (U.S.); International Geological Congress (16th : 1933 : Washington)
Publisher: U. S. Govt. Print. Off.
Published: 1932
Place of publication: Washington
Language: eng
Number of pages: 31
Subjects: Geology -- Pennsylvania; Geology -- Maryland
Notes: At head of title: International Geological Congress, XVI session, United States, 1933. Guidebook 10: Excursions B-1, B-2, B-3

"Washington to Baltimore, Maryland and York, Pennsylvania, by A. L. Jonas and E. B. Knopf": p.27-31

Published under the auspices of the United States Geological Survey