Feature

Data for Polar Explorers

Know Delinquents by Play

New Chlorine Preparation Uses Two Old Processes

Station in Lipstick Tube

Chlorophyll Retains Light

[Photograph]: Photography Aid

[Photograph]: Cyclotron Magnet

Long Distance Radio Aided

Seismographs Cannot Detect Secret Atom Bomb Tests

Bacitracin Fights Germs

Electronic Tool Preserves, Sterilizes Fresh, Raw Food

Rare-Earth Mineral Is Named Nuevite