Feature

Back Matter

To Study Gorillas

The Significance of “Gestalt”

Parachute Is Airplane Life-Saver

Now Tinted Film for Talkies

Nature Ramblings: Indian Pipe

Radium Effects Not Due to Cosmic Rays

Avoid Vitamin Excess

First Glances at New Books

American Ape Reported

Swedish Stone Age City

Synthetic Scents