Feature

Front Matter

Piano Tuning Circles Puzzle over New System

Vitamins from A to Z Are Fact, Not Fancy

Nature Ramblings: African Game Protected

Rifle Gives Man on Foot a Break against Planes

National Zoological Park Has White Bison Bull

Polar Bibliography Now Being Compiled

In Science Fields

Chemists Find Way to Use Low Grade Italian Bauxite

Engineer Mixes Economics with His Technologic Work

Dura on the Euphrates Called Great Deposit of Ruins

Increase of Taxes May Bring Communism without Revolt