Feature

Front Matter

Chance Discovery May Yield Metal-Plating Method

Stratosphere under Heavy Attack by Scientists

Stellar Looking-Glass Slowly Cooling

Superiority Predicted for Rotating Wing Aircraft

Man Made Tools in Dim Age “At Present Unspecified”

Water Snakes in Zoo Had Amebic Dysentery Epidemic

Huge Photographic Map of Indian Lands to Be Made

Hardest Known Cosmic Rays Found in Iron Mountain

Correspondence Course Mortality Found High

Wingless Rooster Studied at Smithsonian Institution

In Science Fields