Colton, F. Barrows. NEWS OF THE UNIVERSE. Mars Swings Nearer the Earth, Sunspots Wane, and a Giant New Telescopic Eye Soon Will Peer Into Unexplored Depths of Space. Super roy. 8vo; pp. 32; 8 coloured plates, 17 illustrations; extracted from the National Geographic Magazine; plain wrappers. [Washington; National Geographic Society; July 1939]. #15919

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