Feature

In Science Fields

Long-Range Forecasting

Hearing Apparatus Sets Own Limit on Pitch and Loudness

Model of Moon Displayed at the Franklin Institute

Scientists Hope to Separate Gas Isotopes by Whirling

Cotton Roads of the South Are New Crop Outlet

Front Matter

Hope for Saving Workers Exposed to Silica Dust

[Photograph]: Sun Cooker

Survey Birmingham, Alabama, for Value of Spray for Polio

Heat Records for 117 Years Broken in State of Lowa

Measures Temperature Change in Brain while It Works