Feature

New South American Volcano

Westward Atlantic Flight Hazardous

Sun a Pulsating Star

Dogs and Convicts Aid Pellagra Sufferers

Rays Show Tooth Cavities

Nature Ramblings: Kinkajou

Back Matter

Hall of Fame for Agassiz and Morse

Sewage a Constant Menace in Cities

Classics of Science: Berzelius on the Use of the Blowpipe

The Depths of Space

Front Matter