Feature

Muscular Physiology Studied by “Artificial Rainbow”

Few Drops of Extract Gives Goiter to 200 Guinea Pigs

Yardstick Made for Volume of Sound

“Sky Rays” Range through Whole of Light Spectrum

Methylene Blue May Kill Instead of Saving Life

Nature Ramblings: When Woods Are Deserts

Slenderizing of Movie Stars Achieved in Projection

Liquid Helium Makes Lead Superconducting

World’s Fastest Camera Lens Made for Movies of X-Rays

Students Predict Decline of Western Civilization

First Glances at New Books

Big Increase in Leprosy Due Largely to Better Reporting