Feature

First Glances at New Books

Front Matter

Primitive Skulls Declared Equivalent to Advanced Forms

World’s Tiniest Motor Built by Russian Youth

Cycle of 23 Years Dominates Heat and Light of Sun

New Cancer-Causing Chemicals Are Unique in Structure

New Discovery Widens Field of Necessary Research

Scattering X-Rays Tell of Dust Danger

Drought Returns to West, Intensified by Heat

[Photograph]: One Porcupine: In Tin

Freedom and Organization Both Needed in Research

Stratosphere Glider Being Constructed in Russia