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Features

The Tree Bark of a Hundred Uses

By Burton Davis

Radio Charts the Upper Air

Published by permission of Major General George S. Gibbs, Chief Signal Officer, United States Army.

By Jerome D. Van Brakle

A Gallon of 'Gas' from a Gallon of Oil

By Henry W. Hough

The Stage Goes "Air-Minded"

Earthquakes

By G. Austin Schroter

Railroad Electrification

By Francis H. Shepard

Another Peking Skull Discovered

By G. Elliot Smith

How Pluto's Orbit was Figured Out

By Henry Norris Russell

Television Needs New Ideas--and Less Ballyhoo

By A. Dinsdale

Glass Tubing By The Mile

How Many Minutes of Play in the Average Football Game?

By Hugo L. Rusch

The Story of Glozel--a Chapter in Credulity

By David Riesman

By-Products from Industrial Wastes

By Ernest W. Steel

The Young Giant: Natural Gas Fuel

The Sick May Ride in Pullmans

The Technician Talks About the Talkies

By Raymond Francis Yates

Birds Have Natural Slotted Wings

By Ray P. Holland Jr.

Departments

  • Departments

    Across the Editor's Desk, November 1930

  • Back of Frontispiece, November 1930

  • The Cork Oak Gives Up its Valuable Outer Bark

  • Our Point of View, November 1930

  • Now You Can Buy Insects for 10 Dollars a Million, New Photo Flash Lamp and more

  • Current Bulletin Briefs, November 1930

  • Better Mailing Container Sought, U. S. Endorsement is Falsely Claimed and more

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November 1930

Think Outside the Gift Box