Feature

Fleeting Chemical Discovered Necessary in Plant’s Life

In Science Fields

Bright Planets

Ten B Vitamins Now Reported and More May Be Discovered

Sex Hormones from Bees May Affect Vertebrates

More than 50 Expeditions Will Uncover American Past

New Air Route May Link Philippines and East Indies

Molecular Activity Likened to Mountainous Terrain

Front Matter

Cubic Inch of Dwarf Star Weighs 18,000,000 Pounds

Fire Battled without Usual Water Damage

Lung Collapse Most Effective for Treating Tuberculosis