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Lightening the Stevedore's Load, Unscientific Lawmaking and more

By C. W. Geiger

Navigating Ships in Trains

An Electrically-Driven Power Boat That Supplies Current to the Motor-Equipped Units of Its Convoy

By Robert G. Skerrett

The X-Ray in the Shop

By George Gaulois

The Cleaning of Railroad Ballast, Street Accidents in Miniature

By Henry J. Edsall

Succeeding in Chemistry

A Relatively New Field Abounding in Opportunities

By Raymond Francis Yates

Seeking the Seven-Mile Ceiling

Details of Major Schroeder's New Altitude Record of 36,020 Feet

By Ralph Howard

Highways Through the Wilderness

Venezuela's New Link Joining Her Ports With Her Internal Trade Centers

By Harry Chapin Plummer

Cutting Out a Railroad Hazard

By S. G. Roberts

Welding a Lighthouse's Broken Legs

By Ralph Howard

The Photostat as an Aid to Research

Some Example of the Uses to Which It Has Been Put in One Library

By Howard S. Leach

What is a Silo?

An Invention of the Nineteenth Century and the Place Found for it in Farm Economics by the Twentieth

By Arthur L. Dahl

Ecuador Contributes a Wood that is Lighter than Cork

By James Anderson

Some Features of the American Motor Boat Show

By "Nauticus"

American Tennis Shoes in Chile

Condensation of Fruit Juices


  • Departments

    Correspondence - March 13, 1920

  • Inventions New and Interesting - March 13, 1920

  • Recently Patented Invention - March 13, 1920

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