Volume 129, Issue 6
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Features
A Wheelless Motor-Car
Charles Proteus Steinmetz
With Fire and Fraud
Something About the Acquisitive Gentleman Who Burns Buildings for Profit
The Fuel of the Future
The Advantages of the Universal Burning of Gas, and the Obstacles in the Way of Its Attainment
Three Wheels Versus Four
The Direction in Which the Development of the Economy Car is Pointed
Gelatine to Eat and Gelatine for Glue, Trackless Trolley Details and more
Another Mediumistic Failure
Our Committee Sees "Independent Writing" Produced by Substitution of Cards
Our Abrams Investigation--III
Comments on Our First Test and a Look Ahead to Other Tests and Studies
Copenhagen-Bornholm Wireless Telephone Service
The Last Harbor of Forgotten Ships
Where Old-Time Clipper and Modern Submarine Chaser Meet for the Attention of the Salvager
Some Great Dredges
Monster Grab-Buckets that are Able to take Fifty Tons of Mud and Rock at a Single Bite
The Lifting Lock
Driving the Bomber to High Altitudes
Latest Guns Make the Air Deadly at 20,000 Feet, and Dangerous at 30,000 Feet
All Fixed for a Hard Winter, for the Hand Screw Machine and more
Making Sport a Science
Devices and Tests Which Determine the Individual Fitness of Candidates
A Milling-Machine Dynamometer, Trees and Climate
The Carlsbad Cave
Recently Explored Cave in New Mexico Which Rivals, If Not Excels, Mammoth Cave of Kentucky
Edison's First Incandescent Light
Tested for a Million Volts, A Gasoline Rail-Car of Power and Stability and more
The "Horse-Hair Snake"
An Account of the Extraordinary Life History of One of Our Common Worms
Where Bridges are Built in the Dead of Winter, The Largest Swimming Pool for Ten Thousand Swimmers and more
The Science of Distribution
An Authoritative Survey of the Devious Channels that Lead from Producer to Consumer
Recording Alternating Current Wave Forms, Amateur Photomicrography by Means of a Microscope and Hand Camera and more
Colorado's Six-Mile Tunnel Under the Rockies
The Long-Deferred Realization of the Plans for an Air-Line Route from Denver to Salt Lake City
Charles Doolittle Walcott, Physiological Effects of High Temperatures
The Air We Breathe
New Types of Apparatus for Measuring the Suspended Dust in the Atmosphere
Mycenae, the City of Agamemnon, as Brought to Light by the Archaeologists
Metering Water by the Wholesale, Pulling Down a Church Steeple With a Motor Winch and more
The World's Largest Subaqueous Tunnel
Building a $60,000,000 Freight the Narrows, and Passenger Tunnel Beneath New York