Feature

New Electric Roof of World Found by American Physicists

Dinosaur Is Restored Internally and Externally

Scientists Isolate Bacteria That Cause Stone Decay

Stomach Ulcers May Result from Lack of Vitamin A

Values of Family Life in Soviet Challenged

Big Tree of Tule Re-Examined; Claimed as World’s Greatest

Depression Spurs Evolution

In Science Fields

Galileo on Falling Bodies: “A Classic of Science”

Mars Favorable to Life, American Astronomer States

Punishment Isolates Children from Parent Who Disciplines

400,000-Year-Old Tools Found in Sand Beds