Feature

Yellowstone Elk Have Steam-Heated Dormitory

Winter Rains to Aid Rangers in Fighting Fires This Summer

Extract of Blood-Forming Hormone Checks Anemia

Great Flood Weakened China; May Have Precipitated War

Front Matter

Neutron, Atomic Brick, May Solve Mystery of Cosmic Rays

Solid Matter Composed of Numerous Atoms in Blocks

Clay Tablet from Babylonia Called World’s Oldest Map

Bacterium from Deep Well Can Live on Petroleum

Color-Blind Men Outnumber Color-Blind Women 4 to 1

Superfine Gauge to Be Used in Testing Navy Telescope

Varied Wealth Expected to Be Taken from Sea