Feature

Engineer Mixes Economics with His Technologic Work

[Photograph]: Finds Mountains

Polar Bibliography Now Being Compiled

In Science Fields

Nursery Nazis

Radioactive Grease on Metals Will Detect Surface Flaws

Chemists Find Way to Use Low Grade Italian Bauxite

Piano Tuning Circles Puzzle over New System

Front Matter

Local Anesthetic Treatment Helps Arthritis Sufferers

[Photograph]: Japanese Build Cyclotron

Green “Scum” Has Value as Aquatic Source of Food