Feature

[Photograph]: For Housekeeping

Front Matter

War Brings Renewed Danger of Invasions by Insect Foes

A.A.A.S. $1,000 Prize Given for Research on the Atom

Christmas Eve Nova Discovered at Harvard

Air Fighters Should Tank up on Oxygen before Ascents

Manufacture Radium by Atom Smashing

Cultural New Deal Urged to Bring Order

[Photograph]: Insects at Meeting

Chemists Seek to Synthesize Bone Marrow Substance

1940 Will Be Memorable

In Science Fields