Feature

Ice-Destroying Chemicals Injurious to Concrete

American Insect Pest in Austrian Orchards

Cotton Helping to Give Better Roads to South

Old Drinking Horns Tell Secrets of Ancient Liquors

Wants Disease-Detecting Materials Standardized

In Science Fields

Front Matter

Super-Radium Supplied Energy for Rapid Cosmic Evolution

Talking Movies Become New Educational Tool

Neuton, Element Zero, May Gain Place in Periodic Table

Parachutes Useless at Bolivian Altitudes

Yale Expedition Maps Unknown Land in Aisa