Feature

Sound Waves Pierce Rubber in Atomic Sub

Grasshopper Infestation

Propose Endless Typewriter Ribbon

Books of the Week

Nature Ramblings: Caterpillars

11-Year-Old Delinquent Probably Not Too Bright

Back Matter

U. S. Patents Available for Public License

Weird Life Discovered

[Photograph]: Caring for Algae

Train “Data Processors” at Harvard University

Parachute System for Dropping Cargo