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Subjects
- Astronomical observatories.2
- Astronomy -- Michigan -- Ann Arbor.1
- Astronomy.1
- Authors, American -- Michigan.1
- College teachers' spouses -- Michigan -- Ann Arbor.1
- Conservatism.1
- Depressions -- 1929 -- Michigan -- Muskegon.1
- Double stars.1
- Job sharing -- Michigan.1
- Office equipment and supplies.1
- Red Cross and Red Crescent -- Michigan -- Muskegon.1
- Scientists -- Michigan -- Ann Arbor.1
- Sunspots.1
- Telescopes.1
- Unemployed -- Michigan.1
- Women -- Michigan -- Ann Arbor.1
- Women's resources.1
- World War, 1914-1918.1
- World War, 1939-1945.1