Feature

New Method Aids Search for Elms with Dutch Disease

Blitzkrieg, Secret Weapons Downed Ancient Egypt

New Rotating Radio Beam Directs Pilot to Fixed Beacon

The Wolf-Girls and the Baboon-Boy

Lending Library to Speed Aviation Progress

[Photograph]: Fights Aerial Invasion

American Research Leaders Reviewing British Experience

Nature Ramblings: Unappreciated Arthropod

[Photograph]: Electric Switching Locomotives

Launch Education Program on Use of Turret Lathes

First Glances at New Books

Propose New Definition for Temperature Scales