Feature

[Photograph]: Moving Day for Fish

Underwater Murkiness Removed by Filtering

Transistor Hearing Aids Operate at Lower Cost

Books of the Week

Find Survival Limit for Lung to Be Grafted

Dentists Now Using 3-D

Make Pituitary Hormone

First Half Hour Critical Period in Heart Wound

Front Matter

[Photograph]: Study Precipitated Particles

Housewives’ Hands

Pint-Sized Radar Serves Small Boats