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Subject
- Aeronautics--Competitions.1
- Bagpipe music.1
- Balloon racing.1
- Balloonists.1
- Balloons, Sounding.1
- Edison Electric Light Company.1
- Edison, Thomas A. (Thomas Alva), 1847-1931.1
- Electric lighting.1
- Ford, Henry, 1863-1947.1
- Gondolas.1
- Hoover, Herbert, 1874-1964.1
- Inventions.1
- Inventors.1
- Jehl, Francis, 1860-1941.1
- Lakes.1
- Meteorology.1
- Motion picture journalism--United States.1
- Mountains.1
- Paddle steamers.1
- Piccard, Jean Felix, 1884-1963.1