The apprentice years of Mason and Dixon
By: by Thomas D. Cope
Publisher: University of Pennsylvania
Published: 1944
Place of publication: Philadelphia, Pa
Language: eng
Number of pages: 16
Subjects: History; Astronomy; Observations
Other titles: Pennsylvania History.
Notes: Title from caption.

"Reprint from Pennsylvania History, volume XI, July, 1944, No. 3."

Mimeographed list of sources attached.