Scientific American Magazine Vol 143 Issue 5

Scientific American Magazine

Volume 143, Issue 5

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Features

The Tree Bark of a Hundred Uses

Burton Davis

Radio Charts the Upper Air

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

Jerome D. Van Brakle

A Gallon of 'Gas' from a Gallon of Oil

Henry W. Hough

The Stage Goes "Air-Minded"

Earthquakes

G. Austin Schroter

Railroad Electrification

Francis H. Shepard

Another Peking Skull Discovered

G. Elliot Smith

How Pluto's Orbit was Figured Out

Henry Norris Russell

Television Needs New Ideas--and Less Ballyhoo

A. Dinsdale

Glass Tubing By The Mile

How Many Minutes of Play in the Average Football Game?

Hugo L. Rusch

The Story of Glozel--a Chapter in Credulity

David Riesman

By-Products from Industrial Wastes

Ernest W. Steel

The Young Giant: Natural Gas Fuel

The Sick May Ride in Pullmans

The Technician Talks About the Talkies

Raymond Francis Yates

Birds Have Natural Slotted Wings

Ray P. Holland Jr.

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