Feature

Strong Earthquake West of Sumatra

Wigglers in Warm Water Die Sooner with DDT

New Machines and Gadgets

[Photograph]: Radio “Hams”

Carbon Black Qualities without Discoloration

Big Beds of Bauxite in Northwest Oregon

Wetmore and Valentine Join Board of Trustees

Ocean Weather Studied

Longer Productive Life

Wine-Making Put on Mass-Production Basis

In Science Fields

Nature Ramblings: Harmful Hero-Worship