The moon : Illustrated by Helmut K. Wimmer. earth's natural satellite / Branley, Franklyn Mansfield, 1915-2002. Wimmer, Helmut K., illus. 523.3 19 BRM Discusses scientific findings about the moon's mass, density, gravity, temperatures, lack of atmosphere, eclipses, orbit, surface, and effect on tides with a section on superstitions. New York : Crowell, c1960. c1960. 1960 Text 114 p. : eng Exploring our universe Moon.