Feature

New Agricultural Airplane

New Stomachs for Patients

Front Matter

Super-Fast Lengthy Flights

[Photograph]: Whistling Porpoises

Oxygen-Containing Fuel for Gas-Turbine Engines

Patent Improved Type of Waxed Wrapping Paper

Powdered Eggshell Makes Better Gingerbread

New Machines and Gadgets

Alcoholics Can Now Drink

Photos Made without Washing, Save Water

All-Canadian Jet Fighter Readied for Flight Test