Feature

Girls “See” the Average at a Glance, No Figuring

New Machines and Gadgets

Front Matter

Misshapen Molecules

For Mouthbreeders, Males Carry the Eggs

Probe Fusion Elements

[Photograph]: Jet for Helicopters

Explosion of World?

Patient Given Cancer

Identify Solar Line

Pigeon Tests Show Thirst Ruins Appetite

Hormone-Radiation Use