Feature

New Amphibian Plane Can Use Varied Terrain

New Step in Flu Fight

Mapping All Possible Battlegrounds Urged

New Drug from Soil Gives Dramatic Results

Three-Prong Cancer Attack

Polio Research Brings Hope

In Science Fields

Fighters May Drop in Boxes

[Photograph]: Turboliner

TV Linked to Microscope

South American Tongues Older than in North

Gas Turbine Engine for Use in British Ship