Feature

Interferometer Finds New Use

First Glances at New Books

Front Matter

New Comet Brightest on June 1

Twin Trees

Giant Wind Tunnel at Langley Field

Stone Age Tools in China

Printer’s Knowledge of Dickens Solves Scientific Hoax

Jewish Scientists Study Locusts

Grasshoppers Threaten United States

Seismograph Faster than Telegraph

What Happens to the Sun’s Energy