"The Mason and Dixon Line."; "Arkle, Thomas."; "Pennsylvania--Boundaries--Maryland.", "Mason-Dixon Line.", "Maryland--Boundaries--Pennsylvania."; "Mason, Charles, 1730-1787.", "Dixon, Jeremiah, 1733-1779."; "Arkle, Thomas."; "1983"; "

Photocopy of typescript.

"; ""; "P14625"; "pec"; "Dixon, Jeremiah, 1733-1779.", "Mason, Charles, 1730-1787.", "Mason-Dixon Line.", "Pennsylvania--Boundaries--Maryland.", "Maryland--Boundaries--Pennsylvania."; "14256"; .