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Subject
- Aeronautics.1
- Astronomy.2
- Balloons.1
- Battery Park (New York, N.Y.)1
- Celestial globes.1
- Education.1
- Eye--Protection.1
- Eyeglasses, Protective.1
- Progress.1
- Religion and culture.1
- Science.[remove]4
- Solar eclipses.1
- Speeches, addresses, etc.1
- Speeches, addresses, etc., American.1
- Stratosphere.1
- Transportation.1
- Weather.1