Feature

Dome for 200-Inch Telescope Is Now Nearing Completion

Front Matter

Modern High-Speed Bombers Show Very Bad Marksmanship

12-Foot Wall Surrounded First City of Troy

Transparent Plastic Used to Preserve Insects

Lightning Strokes Caught by a Rotating Camera

Ice Floe Rotation Prevents Magnetic Variation Measures

Oceans Half Billion Years Old, Their Salt Tells Scientists

Hunt in New Guinea for Foe of Sugar Cane Insect Pest

In Science Fields

Ship’s Officer Saw Two Setting Moons

Gasoline-Fueled Motors May Be Banned from Airplanes