Feature

Yardstick Made for Volume of Sound

Methylene Blue May Kill Instead of Saving Life

Earth, like Sun, Has Corona, Study of Aurora Demonstrates

Muscular Physiology Studied by “Artificial Rainbow”

Drs. Compton and Millikan Agree on Experiments

Liquid Helium Makes Lead Superconducting

In Science Fields

Alaska Earthquake “Seen” with Telescope

Tests Indicate Cosmic Rays Are Particles

First Glances at New Books

The Cloven Hoof: “A Classic of Science”

“Sky Rays” Range through Whole of Light Spectrum