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:
- Mason-Dixon Line., Maryland--Boundaries--Pennsylvania., Pennsylvania--Boundaries--Maryland.