Feature

Future of Aviation Progress Lies in Invisible Film of Air

Mass of New X-Particles May Have a Wide Range

Hormones Aid in Treating Burns; Throw Light on Cancer

Nature Ramblings: The Reich Regulates!

I.Q. Is What Surroundings and Experience Make It

Radio Is Latest Aid in Battle against Snow

Coal Tar Yields Narcotic That Rivals Codeine

Cold Essential to Growth of Northern Wild Flowers

Artificial Creation of Life May Come from Virus Study

Spray Drying Produces Tiny Bubbles of Milk

Front Matter

Lost Continent Sought with Artificial Earthquake at Sea