Geological survey of the environs of Philadelphia
By: performed by order of the Philadelphia sociey for promoting agriculture by G. Troost.
Series: USAIN state and local literature preservation project; Pennsylvania agricultural literature on microfilm
Publisher: H.S. Tanner
Published: 1826
Place of publication: Philadelphia
Language: eng
Format: Microform
Number of pages: 39
Subjects: Geology -- Pennsylvania -- Philadelphia.