Feature

Piston-Turbine Engine Utilizes Exhaust Gases

[Photograph]: Theater of the Atom

Germanium for Infrared Lenses Made in Purer Form

Books of the Week

New Machines and Gadgets

Nature Ramblings: Walrus

From Now on: Oldsters

Front Matter

Jet Pilots Trained in Dark for Night Spotting

New Venereal Disease?

New Cancer Weapon

Cannon-Fired Net Traps Wildfowl for Banding