Feature

Navy’s New Airship Hangar Will Be Built in Sections

Insects Better than Rats for Use in Vitamin Tests

Prehistoric Cave Culture Proves Mystery to Scientists

First Glances at New Books

Front Matter

New Theory Would Explain Cosmos’ Unexpected Ways

Huge Burning Glass May Give Maximum Sun Heat on Earth

Discovery of Element 87 Reported by Cornell Chemists

Special Capillaries Protect Extremities against Frostbite

Ancient Indians Introduced Building of Houses in Row

Are You Grown Up?

Nature Ramblings: Beaver’s Little Cousin