Astronomers : moulders of American history.

Creator Personal:
Orr, Ed.
Title:
Astronomers : moulders of American history.
Call Number:
P11740
Date:
1935
Description:

Typescript.

Subject Personal:
Mason, Charles, 1730-1787., Dixon, Jeremiah, 1733-1779.
Subject Geographic:
Maryland--Boundaries--Pennsylvania., Mason-Dixon Line., Pennsylvania--Boundaries--Maryland.