Feature

Back Matter

Destructive White Grubs Encouraged by Some Trees

Nature Ramblings: Under-Water Hayfields

Urge U. S. Airships for Trans-Atlantic Service

First Glances at New Books

Front Matter

Slot in Plane Wing Prevents Dangerous “Dead” Air Space

New “Farthest out” Set at Three Sextillion Miles

Ancient Navajo Language Now to Be Written

Find Thousands of Germs on “Clean” Glasses

New Type Sailboat Is Minus Foresail, Boom, and Stays

Game Restoration Fostered in Combating Soil Erosion