Feature

  1. Air-Raid Shelter in America Proposed to Guard Best Data

    By
  2. Bats Use Supershrill Cries to Pilot Themselves in Dark

    By
  3. In Science Fields

    By
  4. First Glances at New Books

    By
  5. [Photograph]: How Comet Looks

    By
  6. Smallest Pieces of Atoms Cause Biggest Explosions

    By
  7. New England Earthquake Centered near North Conway

    By
  8. Can’t Trap Mosquitoes with Scents or Lights

    By
  9. Good Health for 1941

    By
  10. Holiday Comet

    By
  11. Million-Volt X-Ray Unit Dedicated at G.E.Anniversary

    By
  12. New Invention Just Patented Makes Scene Visible by Heat

    By