Feature

Gas Turbines to Give Much More Power

Capt. Tribus Awarded Thurman H. Bane Prize

New Machines and Gadgets

Front Matter

Unborn Mice Have Young

Protects Penicillin

26 Horsepower Engine Built on New Principle

Throat Microphone

“Snakes” Cleared Trails of Mines for Allied Tanks

Long-Range Research for Aerodynamics

Naval Vessels Preserved

[Photograph]: Before and After