Volume 129, Issue 2
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Features
Features of a Properly Constructed Brick and Frame Residence, with the Commonly Used Terms
Invention and the "Grifter"
Gathering in the Foolish Dimes and the Heedless Dollars at the Summer Amusement Parks
Camouflage and Carpentry
How the Housing Shortage Has Played Into the Open Hand of the Jerry-Builder
The Paper of the Future
Means, Ready to Hand, for Staving Off the Impending Famine in this Essential Material
Our Psychic Investigation in Europe -- IV
A Sitting with Evan Powell, the Well-Known Welsh Medium, that Was Very Rich in Phenomena
A Graphic Showing of American Automobile Statistics for 1923
A Giant Among Gigantic Wind Tunnels, A Model Railway in the Workaday World and more
The Trans-Atlantic Race
In this Test of Skippers and Sail Plans the Two Hulls are Identical
Summer Time and Radio
Recent Developments in Radio Broadcasting that Challenge Warm Weather Handicaps
Another Forward Step in Electrification
How the Virginian Railway will Replace Steam with Electricity for Hauling Heavy Trains
Light Weight Cement Slabs that Take the Place of Lumber in Building Operations, Dahlia Sugar and more
Spherical Aberration in Thin Lenses
When Light Speaks
Recording and Reproducing Sounds by Means of Light Intensities
New United States Scout Cruiser "Richmond" -- Fastest of its Type
Insect-Eating Insects
Some Glimpses of the Eternal Struggle for Survival
Immunizing Cabbage by Natural Selection
How Nature's Standard Biological Process Is Adopted and Speeded Up by Man
The Loudest Voiced Bird, Geography and Intelligence
Diamonds from Guiana
How the Precious Sparklers are Recovered from the Gravel
A Beacon for Aviators, The Gipsy Moth and Dead Trees and more
Carrier Current Telephony
Guiding Radio Telephony over Existing Telegraph, Telephone or Power Lines
Making Old Air Better than New, Chemical Analysis with the Spectroscope
What Makes Glue Stick?
Some Studies of the Roles Played by the Wood and by the Adhesive
Solders for Aluminum, A Draw Bridge Which Slides Diagonally and more
Concrete in the Making
Ingenious Production Methods Evolved in the Portland Cement Industry
Where the Temperature is 434 Degrees Below Zero
The Work of the Bureau of Standards in Liquefying and Freezing Hydrogen, Lightest of Gases
When the Packer Turns Inventor, Marking Laundry by Machine
The Reconstructed Leviathan
Story of the American Effort to Render this Ship the Safest and Fastest of the Three Great Ex-German Liners
Women on the Farm
The Role in Our National Life of the Wives and Daughters of Agriculture
A Dummy Aircraft Observer, The Latest Motion Picture Outfit for Amateurs and more
What is Color?
Something About the New Theories of Ostwald on this Important Subject
Ur of the Chaldees: The Birthplace of Abraham
Uncle Sam's Question-and-Answer Office
The Bureau of Standards, and It's Bearing upon Everyman's Business Problems