Ball Bearings and how they are Made
The Tiny but Perfect Spheres that Keep Down the Friction Toll in Modern Machinery
Stories by Robert G. Skerrett
Immunizing Cabbage by Natural Selection
How Nature's Standard Biological Process Is Adopted and Speeded Up by Man
A Key to Many Industries
The New Technique of Die-Cutting, and the Place It Holds in Our Factories
The "Lusitania" and the Submarine Salvor
Some of the Schemes Proposed for Dealing with the War's Most Famous Wreck
Eliminating Three Miles of Grade Crossings
How the Lackawanna Railroad Is Recasting Its Line Through Newark and the Oranges
Fire at Sea
Means of Minimizing an Ocean Peril of Increasing Prevalence
When the Hand on the Throttle Fails
The Construction and Operation of the Webb Automatic Train-Stop System
Our Wasteful Industries
Six Major Manufacturing Groups That Make a Bad Showing as Regards Operating Efficiency
Curbing the Colorado
Flood Control, Irrigation, and Power Generation All In One Gigantic Construction
A Ship Without a Bottom
How the "F. D. Asche" Was Towed from Florida to New York with Only a Blanket of Compressed Air to Keep the Sea Out of Her Gaping Hull
Research Settles the Problem of Tunnel Ventilation
The Best System for Supplying Fresh Air to the Hudson River Vehicular Tunnel Tube Is Determined
America's Fuel Resources
What We Have and How We Are Using Them
America's Domestic Food Supply
In which we take Inventory of our needs and how far they are Supplied by Home Production
A Climax in Concrete Construction
Erecting An Eighteen Story Reinforced Concrete Building at a Lower Cost Than a Structural Steel Type
Grouping Our Power Plants
The Superpower Survey's Impressive Figures, Which Afford Plenty of Food for Thought
The Hudson River Caissons
Giant Shafts from Which the Vehicular Tunnel Will be Built and Later Ventilated
Painting with Metal Spray
How Protective Coatings are Shot into Place Under the Latest Procedure
Starving in the Midst of Plenty
Present Knowledge Regarding the Cause and Cure of Pellagra
Getting the Rest of the Oil
Laboratory Tests that Reveal the Underground Secrets of the Petroleum Field
