Volume 126, Issue 1
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Features
America's Domestic Food Supply
In which we take Inventory of our needs and how far they are Supplied by Home Production
The Electric Field of the Atmosphere During Storms, Gear-Shift Innovations
The Radio Central
America's Bid for World-Wide Wireless Supremacy as Crystallized in the Huge Station at Rocky Point
The Hydraulic Laboratory
A Prime Aid in Helping us to make the most of our Waterpower Resources
Stamp Frauds and their Detection
Some of the means Adopted to Protect the Collector from Forgeries
Comets that have Lost their Tails
Curious Irregularities Revealed by the Camera in these Attenuated Streamers
A Catapult and Turntable for Airplanes
The Navy's device for Launching Airplanes into the Wind, without Changing the Course of the Ship
Vehicular Tunnel Ventilation
Tests in an Old Coal Mine, with Regular Automobiles, under Operating Conditions
The Hydraulic Jump
How Nature's Treatment of Rapids and Waterfalls is Copied in Ohio's Big Impounding Dam
The Legal Adviser in Foreign Trade
Standard Specifications for Large Incandescent Electric Lamps
From Steamer to Sailing Ship
A Plea for the two Hundred Wooden Steamers built by the United States Shipping Board
With Eye-Piece and Camera
Recent British Developments in Petrological and Metallurgical Microscopy and Photography
Naval Construction in Japan
Facts and Figures Regarding the Strength of the Japanese Navy Today and in 1927
The Determination of Oxides of Nitrogen
Recent Advances in Lighting
The Modern Illuminating Engineer: Artist, Electrician, Chemist and Psychologist
Government Railroad in Alaska Nearing Completion
Connecting Seward, at the Head of Resurrection Bay, with Fairbanks by a 471-Mile Line
Track Laid on Cables while fill is being Made
Large Diesel Engines
Noises for the Movies
How various Realistic Sounds are Produced by means of Ingenious Drummer's Traps
Reading between the Lines
Methods of Invisible Writing Employed during the War, and their Detection
Bottling and Labeling Machine for Small Scale Operations, Applying Electricity to the Metal-Melting Pot, and more
Design Patents
What they are, and the Rules Governing Recovery for Infringement of them
The "Quest," a Norwegian Sealing Ship which has been Refitted for Sir Ernest Shackleton's new Antarctic Expedition
Recent Discovery in Greek Lands
A Sketch of the Principal Excavations and Discoveries of the Last Fifty Years
The Mount Everest Reconnaissance
A Garbage Crisis
Must we Solve Anew the Problem of the Disposition of Domestic Wastes?
New Timing Disk reduces a Day's work into a few Minutes, How Sensitive is Dynamite?
New York's Proposed Belt Railway
Substituting Direct Rail Connection for Costly Car-Float and Lighter Transfer between Rail, Warehouse and Dock
Studying the Flight of Flies
Lessening Lumber Losses
Some of the ways in which Wood Wastes are saved and put to work
Magnetic Testing of Wider Applicability
The Latest in Steel Rails
Doubling the Life while Increasing the Cost Only by Twenty Per Cent
Keeping Track of Surgical Operations, Hot High-Nitrogen Gas in a Metal Mine
The Noiseless Elevated
Philadelphia's Plans for Making Conversation Possible while the Trains are Passing
Lumber of Steel, The Grunewald Automobile Race-Course
Bombing and Bombing Sights
How Aiming from the Unstable Platform of an Airplane is made Possible
How did the Ichthyosaurus Live?
Intake, Compression, Power and Exhaust
Successive Stages Showing what happens inside the Motor that drives the Modern Automobile
Trolley Snow Sweepers, Concrete Tower for Dam Construction
Why Not Long-Distance Stenography?
Combining Motion Pictures with Clockwork
The Mechanism of the Psychic
Indications of an Unformulated Force, and What we may hope to make of them