Feature

New Machines and Gadgets

Herbicide Kills Weeds, Allows Cotton to Grow

Next Month’s Weather

Density of Ancient Mexico

Jetliner to Cross Atlantic

Car Life Expectancy Doubled in 25 Years

Helium Debate Settled

For A-Bomb-Proof House, Build to Resist Quake

Electronic Computers Aid Better Use of Water

False Heart Disease by Hypnotic Suggestion

[Photograph]: Airport Recorder

Sound Waves Help Blind Men Dodge Obstacles