Feature

New Machines and Gadgets

Fabrics Insect-Proofed

Marked Whales Yield Data on Age at Maturity

Satellite Could Check Einstein’s Red Shift

Can Halt “Black Cancer”

Doctor Starts Heart by Blow to Chest

In Science Fields

3 Diseases Climb in U. S.

[Photograph]: Round-Tip Props

Scientia International

Fresh Vegetables Suffer from “Discomfort Index”

Magnetic Dip Pole Drifts Northward