Flora of the Conowingo Barrens of Southeastern Pennsylvania
By: by Francis W. Pennell
Series: Harvard Botany Libraries preservation microfilm project -- 00576
Publisher: The Academy
Published: 1911
Place of publication: Philadelphia
Language: eng
Number of pages: 584
Subjects: Botany
Other titles: Proceedings of the Academy of Natural Sciences of Philadelphia.
Notes: Title from cover.

"From The Proceedings of the Academy of Natural Sciences of Philadelphia, October, 1910."

"Issued January 13, 1911."