Feature

New Colors in Stone Sought as Relief from Machine Age

Extract of Blood-Forming Hormone Checks Anemia

Overdose of Caffein May Cause Sterility in Males

First Glances at New Books

Superfine Gauge to Be Used in Testing Navy Telescope

Neutron, Atomic Brick, May Solve Mystery of Cosmic Rays

Color-Blind Men Outnumber Color-Blind Women 4 to 1

Front Matter

Varied Wealth Expected to Be Taken from Sea

New Source of Vitamin A Discovered in Plant Seeds

Conservatism Urged in Evaluating Radium Ore

Individual Fog Droplets Measured for First Time