Popular Science (1872-Present Popular Science Publishing Co.) Vol. 151 #2

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Volume 151, Issue 2, August, 1947 - Features include "Test Planes Test the Sonic Wall", "The Truth About Germ Warfare", "How Ocean Cables are Mended", "Toys Mirror a New Age" and more. 6.5" x 9.5", 252 pages, PC/PB&W. Cover price $0.25.