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“The Navy” and Naval Criticism

Where the Reciprocating Engine Drove Out the Turbine

The Pennsylvania Railroad and the Steel Rail Problem

Designers of the Brooklyn Bridge Terminal

Asbestos Slates--A German Invention

When Was the First Pendulum Experiment Performed in this Country?

The Current Supplement

Lemoine and His Artificial Diamonds

Extermination of Fruit Pests in California

Award of the Army Aeroplane Contracts

Opening of the Hudson River Tunnel System

The Testing of a Locomotive

By Frederic Blount Warren

Closing a 700-Foot Break in the Mississippi Levees

By Paul J. Brand

Sending the Whalebacks Out to Sea

By L. E. Moss

The Efficiency of the Human Machine

By René Bache

An Improved Fish-Line Float

Shipping Can for Transporting Milk

Safety Connection for Gas Stoves

Micrometer Attachment for Calipers and the Like


  • Departments


  • Index of Inventions

  • Recently Patented Inventions

  • New Books, Etc.

  • Notes and Queries

  • Patents

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February 22, 1908

Confronting Common Wisdom