Feature

Disabler Preventive

Dr. C. G. Abbot Resigns as Smithsonian Secretary

New Army Camouflage Net Resembles Woman’s Veil

In Science Fields

Ultraviolet Helps Reveal Chemistry of Vitamins

[Photograph]: Duck Stamp

No Need to Eat Less Protein in Hot Weather

New Machines and Gadgets

Languages in a Hurry

Smoke Protects Fighters

New Flying Bulldozer Can Alight on Water

Chemicals Tested for Fighting Tuberculosis