Feature

Greeks Used Sloping Roof 3000 Years Ago

Drug Addicts Fewer Federal Report Says

Gases Dense as Metals in Stars

New Sounding Method Improved by Coast Survey

Tidal Motor Made by Bulgarian

Bobbed Hair Threat to Hairpin Industry

New Locomotives Make Pygmies of the Old

A Table Trick and What It Teaches

Spots on Venus Arouse Interest of Astronomers

Ploughing Made Easier by Electrical Device

Organization to Study Tropic Plants

Educated Snail Learns to Speed