Cave exploration in the Eastern United States
Subtitle: preliminary report
By: Department of American and Prehistoric Archaeology of the University of Pennsylvania ; [Henry C. Mercer].
Contributors: University of Pennsylvania. Department of American and Prehistoric Archaeology.; YA Pamphlet Collection (Library of Congress)
Publisher: s.n.
Published: 1896
Place of publication: [Philadelphia
Language: eng
Subjects: Caves.; Prehistoric peoples -- United States.