Cover title: Mitchell's map of Pennsylvania.
Prime meridians: Washington and Greenwich.
Insets: Lehigh and Schuylkill coal regions -- Vicinity of Philadelphia.
Includes Profile of the Pennsylvania Canal.
"Pennsylvania census, 1830" inside front cover.
Boston Public Library copy lacking covers.
"Entered according to Act of Congress, April 15th, 1831 by S. Augustus Mitchell of the State of Pennsylvania.