Feature

Predict Success in Fly Control If Sanitation Used

Device Helps Geologists Detect Underwater Oil

Longer Radio Relays by Short Waves past Horizon

[Photograph]: Pylons, Not Warships

International Air Tackled

Blame for Baldness

Make Short Leg Grow

Freeze Dry Factory Wastes to Stop River Pollution

Trade New Hearts for Old

Front Matter

Blood Pressure Readings Take Skill and Knowledge

Government Officials Lean and Unmuscular