Feature

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

In Various Science Fields

Pithecanthropus Erectus: A Classic of Science