Feature

Pint-Sized Radar Serves Small Boats

Transistor Hearing Aids Operate at Lower Cost

Find Survival Limit for Lung to Be Grafted

First Half Hour Critical Period in Heart Wound

Make Pituitary Hormone

Front Matter

New Operation, Pills for Ulcer Patients

Nature Ramblings: Deer

Not Necessarily Commie

[Photograph]: Tiny Capacitor

Auxiliary Motor Solves Trolley-Bus Problems

1954 Will See Big Polio Vaccine Trials