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VIEW-MASTER REEL ONE
1. Cover Picture—Stonehenge, an
Ancient Calendar Computer
2. Mayan Observatory, Mexico
3.' Ptolemy's Idea of Solar System
4. Armillary Sphere
5. Backward Motion of Mars
6. Model of Lens Telescope
7. Jupiter as Seen by Galileo
VIEW-MASTER REEL TWO
1. Model of Reflecting Telescope
2. Scale Model of Solar System
3. Eclipses Explained
4. Principle of a "Planet Finder"
5. How a Spectroscope Works
6. Cover Picture—Solar Flare
7. Astronomer at work
VIEW-MASTER REEL THREE
1. Stars and Their Spectra
2. Radio Telescope
3. Our Galaxy, the Milky Way
4. Barnard's Star and Its Possible Planets
5. Astronauts on the Moon
6. Closeup of Lunar Surface
7. Mars in Stereo
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