The Signal Corps of the 'Movies'
Signal Systems Using Telephones, Radio, Electric Lights and Flags, Make Possible the Direction of Large Groups of Actors
Volume 136, Issue 3
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Features
The Simplest Element of All
Recent Research on the Atom of Hydrogen Points to the Possibility of Creating a New Chemistry Richer in Potentialities than the Chemistry of Today the Chemistry of Atomic Synthesis
Doubtful Newspaper Astronomy
The Phenomenon Known as Lunar Appulse Is Not a Highly Rare Astronomical Event, as Was Recently Announced by the Press. Nevertheless It Involves Interesting Considerations
Micro Motion-Pictures
How Microscopic Cell Life Is Being Studied on the Motion Picture Screen
How a Great Museum Serves the Public
Uncle Sam, Spendthrift--VIII
Our Virgin Soils Were Formerly Rich in Plant Food. We Have Been Taking This Food Out and Putting Very Little Back, Thus Exhausting the Soil
Marconi Strides Onward
Beam Transmitters Pronounced a Big Success and a Milestone in the Progress of Radio
Inventors Who Have Achieved Commercial Success, March 1927
The Man Interviewed for the Third Article of This Series Was Spurred On by Inability to Sell Poor Shipping Containers
New Glass Allows Ultra-violet Rays to Enter the Home
Railroad Changes River's Course
By Diverting the Schuylkill River Through an Artificial Channel, the Reading Railroad Eliminates a Long Tunnel and Two River Crossings
Psalmist's Spring to Supply Jerusalem with Water
How the Problem of an Efficient Water-supply for the Holy City Is Being Solved by the Establishment of Modern Water Works on the Spot Associated with the 23rd Psalm
How is Your Automobile Radiator Made?
Carl E. Akeley--Naturalist, Explorer and Inventor
Solar Whirlwinds Made Visible
The New Hale Spectrohelioscope Provides Eyes for the Previously Sunblind Astronomer
Swamps Reclaimed by Weed-cutting Machines
New British Tanks, Field Artillery, and Military Cars with Road Wheels and with Tracks for Rough Ground
Deep-sea Fish Angle For Their Own Kind
Photographs from The Illustrated London News
In the World of Chemistry, March 1927
A Department Devoted to the Advancements Made in Industrial and Experimental Chemistry
Applied Science for the Amateur, March 1927
A department devoted to the presentation of useful ideas wherein will be found material of practical value for those who are mechanically inclined
Commercial Property News, March 1927
A Department of Facts and Notes of Interest to Patentees and Owners of Trademark Rights