Skip to main content


How the Lever Principle was Applied in Righting a Sunken Steamer, Convenience for Microscopic Workers, and more

How Wireless Helps the Mariner

Keeping Navigation Posted by Means of the Radiometer and the Radiophore
Pages also contain an article on women tractor drivers in England

By Robert A. Lavender

Strategic Moves of the War, April 3d, 1918

By Our Military Expert
[subject is on the failure of the German Spring Offensive]

Guns of the "Queen Elizabeth"

The 15-inch Piece That Bombarded Galliopoli

World Markets for American Manufactures--April 13, 1918

A department devoted to the extension of American trade in foreign lands

By William W. Sniffin


  • Letters

    Correspondence- April 13, 1918

  • Recommended

    New Books, Etc.- April 13, 1918

  • Departments

    Inventions New and Interesting- April 13, 1918

Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format
Scroll To Top