Feature

Sun Not Much Older than 7.55 Million Million Years

Stone Ceremonial Lamp Found in Alaska

Rats More Clever than Humans at Escaping from Labyrinth

Knowledge of Chromosomes Founded Synthetic Species

300,000 Galaxies Studied by Harvard

Douglas Fir Felled in 1895 Older than Sequoias

Temper Tantrums

In Science Fields

New Hormones Show Whether Boy or Girl Will Be Born

Forty Thousand Protected against Spotted Fever

Field Museum Gets Horned Gopher Skull

Chemical Surface Phenomena: “A Classic of Science”