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Subjects
- Astronomical observatories.4
- Astronomy -- Michigan -- Ann Arbor.1
- Astronomy -- United States.1
- Astronomy.[remove]6
- Celestial bodies.1
- Children.1
- Churches -- Michigan.1
- Double stars.1
- Eclipses.1
- Evolution -- Religious aspects.1
- Inventions.1
- McMath Solar Telescope.1
- Nature -- Michigan.1
- Planetaria.1
- Road construction -- Michigan.1
- Shiloh, Battle of, Tenn., 1862.1
- Sunspots.1
- Telescopes.1
- Tourism -- Michigan.1
- Transportation -- Michigan.1