Feature

Milky Way Now at Its Best

Two-Way Communication on Ultra-Short Waves

University of Pennsylvania Acquires Cook Observatory

Latest Patents Include Airplane Gun Turret

[Photograph]: Windowed Wings

Lacking Parts of Brain, Monkeys Still Use Tools

Thickness of Paint Measured Magnetically

Ultraviolet Barrier Stops Germs at Doors

Nature Ramblings: Blitzkrieg against Fire

Front Matter

Develop New Cancer Serum That May Aid Diagnosis

Anti-Poison Ivy Cream Made by U. S. Public Health Service