Feature

Alaska Crossroads for World Flying

Soviet Cotton Grows Red

Nature Ramblings: Toothy Aristocrats

Plastic Bearing Models Aid Study of Lubrication

Nature Ramblings: Lethal Weapon

First Flight of XB-36 Judged Excellent

Paderewski Hospital Moves Back to Poland

Books of the Week

Sulfa Drug Treatment for Hatchery Disease

New Machines and Gadgets

Front Matter

Exploring Upper Air