Feature

Hard on Teeth

Plastic Replicas Used to Test Smoothness

Cast of Virus Studied

[Photograph]: Glass Cloth Hangar

Fire Lookouts to Help Make Eclipse Observations

Meteorological Data Lost

Too Much Speed Is Bad

Postwar Jet Engines

[Photograph]: Mathematical Instinct

Many Postwar Uses for New Organic Cements

In Science Fields

Vegetables without Soil