Feature

Throat Microphone

“Snakes” Cleared Trails of Mines for Allied Tanks

Long-Range Research for Aerodynamics

Naval Vessels Preserved

[Photograph]: Before and After

Facial Hemiatrophy Cause

Water-Lily and Violet among Plant Patents

Stored Cereal Grains Protected from Spoilage

Locates Survivors at Sea

German Submarine Menace Was Lessened by HF/DF

In Science Fields

Quadruplets in the Sky