Feature

Cosmic Ray Experts Sail for Round-World Test Trip

Survival of Superstition Laid to School Methods

Nature Ramblings: Short-Lived: Many-Seeded

Nazis Seek Purer Iron Because Steel Is Arsenic “Poisoned”

First Glances at New Books

Front Matter

Great Coral Reefs in Pacific Have Clams Four Feet Long

Cleaning Long Pipe Lines Is Strange, Tough Task

Patent Describes New Blind Landing System

Dean of Plant Explorers Honored with Medal

Collision Theory of Earth’s Origin Is Exploded

Engineers’ Inquiry Asks: Are Patents Suppressed?