Scientific American Magazine

Needed: A Bigger Merchant Marine

Bone-Conduction Equipment to Aid Partially Deaf Persons

Perfection of Racing Cars and the Terrific Tests They Undergo Teach Many Lessons to the Manufacturer

How the Anthropologist Explores the Buried Evidence of the Ancient Past and Reconstructs an Outline of Prehistory

How the Astronomical Specialist Applies Scientific Management to the Systematic Search for New Asteroids or Minor Planets

Many Advantages Seen for the Front-End Drive Which Has Recently Been Applied to an American Pleasure Car

Basically Sound, the Aircraft Industry Has Suffered Severely From Growing Pains, But Is Now Becoming Stable

Intrepid Engineers Anchor Cobweb of Steel to Gorge's Precipitous Walls

The Many Advantages of This Simple Power Plant Point Toward a Great Increase in Its Use

Our Competition Has Focused Attention on Devices That Make for Safe Navigation, and Are Reliable in Emergencies

A Scientific Account of Research on Protactinium, Element 91, Which Is as Radioactive as Radium

First Prize Awarded to an Army Flyer, Second to a Commercial Designer and Third to a Midshipman

Grueling Tests on Proving Ground Show Capabilities and Characteristics of Cars

Large-Scale Farming Operations May Be Revolutionized By Means of Tractors Powered With Diesel Engines

The New Fused Quartz Solarium

A Survey, in Brief, of Developments, Improvements, and Changes in Design of Some of the Better Known Cars

As Spinning of Cables Begins, the Hudson River Bridge From New York City to New Jersey Becomes a Giant Loom

Conveyor Belt Unit on Truck Delivers Load With Ease and Speed

Gasoline to Which Tetraethyl Lead Is to Be Added, Must Be Carefully Tested to Insure a Definite Quality

At the Cost of An Hour's Intensive Study You May Learn a Mnemonic System Which 'Will Mystify and Entertain Your Friends. But Memory Cures Are Unscientific