Feature

Front Matter

“Fossil Niagaras” Dwarf Earth’s Greatest Waterfalls

Scientists to Study Expected Radio Eclipse

Study Throws New Light on Tooth Decay

Rat “Digests” Quarter of a Steel Ball Bearing

Ancestors of Crocodiles Studied at American Museum

Strange Easter Island Writing May Be Notes of Orators

Life without Parasites Forecast by Rat Experiments

Only Half of Lightning Flash Is Seen by Observers

Climates Made in Basement

In Science Fields

Nitrogen and Phosphorus: “Classic of Science”