Charles Mason and Jeremiah Dixon, "The Journal of Charles Mason and Jeremiah Dixon," Memoirs of the American Philosophical Society, v. 76 (Philadelphia: American Philosophical Society), 1969.
Referenced in:
Mason-Dixon Line
Charles Mason and Jeremiah Dixon, "The Journal of Charles Mason and Jeremiah Dixon," Memoirs of the American Philosophical Society, v. 76 (Philadelphia: American Philosophical Society), 1969.
Referenced in:
Mason-Dixon Line