Feature

New Atomic Particles Forecast in Cosmic Radiation

No Substitute Known for Metallurgical Coke

Radium in Meteorites Helps Fix Age of Cosmic Visitors

Urges Useful Employment as Mental Health Measure

Peak of Measles Epidemic Not Due for Three Weeks

Tree Grove Is Leading Character in New Book

Yellow Fever Weapon Developed Just in Time

Viruses, Declared Non-Living, Show Some Signs of Life

Front Matter

War Is Not Necessary or Inevitable Biologically

Hitler Rose to Power Because He Felt Personally Insecure

Stone Age Animal Painting Presented to Museum