Feature

Millions of Horsepower in Southern Rivers

Spots on Venus Arouse Interest of Astronomers

Ploughing Made Easier by Electrical Device

New Sounding Method Improved by Coast Survey

Doctors Doubtful of Cancer Serum

Educated Snail Learns to Speed

Graduated Amplifiers for Hard of Hearing

Organization to Study Tropic Plants

Gases Dense as Metals in Stars

New Locomotives Make Pygmies of the Old

Simple Science by Wow: Bread

A Table Trick and What It Teaches