Feature

Build Mile-Long Isle in San Francisco Bay

X-Rays Kill Living Cells by Suffocation; Cancer Clue

Infantile Paralysis Cases Continue to Mount

Seashore National Park to Preserve Beauty of Dunes

[Photograph]: For Steam “Windmill”

Stellar Preview

British Expert Predicts Speed and Altitude Limits

Heat Instead of Light for Heavy Weather Signals

Bacteria Grown to Order; Make Butter Uniform

Nature Ramblings: Widows’ Sons

Sun Gives Less Light than Supposed, Moon Gives More

First Glances at New Books