Feature

Robot “Brain Machine” Corrects School Exams

Nature Ramblings: Aquatic Highway Signs

African King Criticized for His Having Only 75 Wives

Very Good Health for 1937

Temple Carved from Rock Excavated in Mexican Town

Venus and Saturn Race

Heart-Throbs of Cockroach Recorded with Instrument

In Science Fields

[Photograph]: Swamp Buggy

Life on Earth Traced Back More than a Billion Years

Front Matter

Volume Information