Feature

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

200,000,000-Year-Old Track Tells Tale of Insect Tragedy

American Negroes Came from Small Part of Vast Africa

New York to Have Third Planetarium