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Nasmyth--The Centenary of a Great Inventor

The Enormous Loss by Forest Fires

Encouraging Decrease of Idle Cars

A Four-Track Freight Tunnel for Manhattan Island

Postal Tubes in the Subways

The Schenectady Car Fender Tests




Fall of the B. & O. Susquehanna Bridge

By William Allen

The Sun's Radiation and Its Study

By Herbert T. Wade

The Paper Industry as Related to Forests and Education

The Multiple Air Propeller. Its Aeronautic Possibilities for Dirigible Airships, Aeroplanes, and Helicopters

The Naval Stores Industry

By Day Allen Willey

The Evolution of the Dovetailed Box

By Charles Christadoro

A Universal Joint of Simple Design

How to Obtain Fresh Water from Sea Water

Cutting Wood with Paper


  • Departments


  • New Books, Etc.

  • Notes and Queries

  • Recently Patented Inventions

  • Index of Inventions

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