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A Terminal on the Jersey Flats

Helium or Hydrogen, The First Dreadnought Design and more

The Tenth Anniversary of the World's Military Aviation

Looking Back at 1909 When our War Department Secured the First War Airplane and Enthusiasm was Worldwide

By George W. Sutton Jr.

Fabricated Lumber and the Housing Problem

By Robert G. Skerret

Who shall do the Work?

A Study of the Present Situation with Regard to Common Labor

By R. D. La Guardia

Burning the Profits

A Problem Confronting the Lumber Industry of the Pacific Coast

By Thomas W. Bibb

Our Technical Achievements in the Great War--I

Making Four Million Soldiers of Four Million Citizens

A Tornado that Tied itself in a Knot

A Remarkable Loop Formation Luckily Recorded by the Camera

By H. T. Dobbins

The Craters of the Moon

By Frederick Slocum

The Trade-Mark Liberty Registered by the United States

By William L. Symons

Rare Metal from Pyrites Flue Dust, A New Process for the Manufacture and Purification of Peroxide and more


  • Departments

    Correspondence - August 2, 1919

  • Inventions New and Interesting - August 2, 1919

  • Recently Patented Inventions

  • New Books, Etc. - August 2, 1919

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