Feature

Weeds Go to Work

Sunspot Activity Should Hit Low Point in 1944

Science Clubs Help in War

Sabadilla Now a Spray

Giant Bus Is Built to Transport Soldiers

Cooked Foods Can Be Dehydrated by New Process

High-Speed Sawing

Standards Will Help South American Trade

New Machines and Gadgets

Copper-Covered Wire Good for High-Frequency Lines

No Engine Changes Needed to Use Low Anti-Knock Gas

First Glances at New Books