Feature

Erratum: Vitamin A Concentrated in Halibut Liver Oil

Old Age May Be Postponed by Calcium and Phosphorus

Tiny Organisms in Sea Soak up Much Sunlight

Erratum: In Science Fields: River Improved to Bring Radium to Civilization

Nature Ramblings: Our Friend the Bat

Boats Could Double Speed Skimming Surface of Water

Rooster Saves Self by Leading Band of Quail

Hollow Steel Planks Form New Flooring

New-Found Java Skull Hints of Tropical Origin of Man

First Glances at New Books

Erratum: New Kind of Atom Smashing Liberates Millions of Volts

600 Miles per Hour Is Limit of Speed for Present Planes