Feature

New Copper Isotope Revealed by Magneto-Optic Method

Drug Made from Indian Plant Produces Movie-like Visions

Heat Rays Take Picture of Ink-Spotted Flat-Iron

German Scientist Confirms Existence of Neutrons

Lost in Space: Our Sun’s Twin

In Science Fields

Which Was the First Steamboat? “A Classic of Science”

Scientist Traces Evolution of Firefly Light Reaction

Nature Rambling: A Miner for Worms

Ancient Sun-Hole Device Added to Famous Calendars

Shrunken Heads of Sloths Are Trophis of Expedition

Booklists of the A. A. A. S.