Feature

Dentists Now Using 3-D

Make Pituitary Hormone

Front Matter

New Operation, Pills for Ulcer Patients

Underwater Murkiness Removed by Filtering

Sewage-Grown Algae

Stereophonic Sound

Airplane Wiggle Traced

Nature Ramblings: Raccoon

New Insecticide Can Get into Cow’s Milk

Pint-Sized Radar Serves Small Boats

Find Survival Limit for Lung to Be Grafted