Feature

First Glances at New Books

Back Matter

Front Matter

Weather Reports of Future May Predict Ozone Amount

[Photograph]: Vest-Pocket Laboratory

Preserving Business Files Called Useful to History

Drinking Heavy Water Brings Death or a Faster Life

Theory of Life on Mars Is Dealt a Blow by Spectra

New “Jet” Pulverizer Produces Finer Powder

Rear-Engined Automobile Is Patented by Henry Ford

“Barrel” Engine for Airplane Is Smaller and Lighter

Light Rays Are Woven into Strange Patterns at Show