Feature

Front Matter

Explorer 17 Will Probe Upper Atmosphere

Poisons More Available to Insects in Damp Air

Enders, Vaccine Pioneer

Books of the Week

Satellite for Radio Hams

New Findings Reported on German Measles

New Transistor Uses Light, Not Electricity

[Photograph]: Boron Fiber

Hair May Be Monitor of Strontium-90 Fallout

Severe Bladder Defect Repaired by Surgery

News from Science Clubs