Feature

Survey Changes in Quality of America’s Population

Is Man Doomed to Extinction?

Peru Restricts Exports of Rotenone Plants

Advises Reducing Sugar in Diet to Avoid Tooth Decay

Reflectors like Airplane Detectors Catch Bird Songs

Organize Clearing House for Heavy Water Research

Nature Ramblings: Old Corvie

Find Fossil Horse of Pliocene Period

Genes Traced to Individual Chromomeres in New Research

Seals Unearthed at Rayy Shed Light on Persian Past

Medical Movie of Stomach Forerunner of Film Cartoon

Dancing-Dwarf Mechanical Toy Found in Egyptian Tomb