Feature

Pleasant Words Are More Easily Remembered

Two-Sexed Corn Strain Obtained by Breeding

Fluorine in Water Causes Spotted Teeth

Reversed Blood Flow Relieves Gangrene

In Science Fields

First Glances at New Books

Australia Arousd to Preserve Wild Life

Front Matter

Weather of Upper Air Studied with Airplanes and Balloons

Last Missing Element Detected by New Method of Analysis

[Photograph]: Mobile Beacon of the Seas

Pressure of Sunlight Strong Enough to Break Comet in Two