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Future Speed of Cruisers

Doubtful Cases of Radioactivity

The Making of Aeroplane History

Progress in the Gas-Driven Ship Problem

More Powerful Express Locomotives

Improved Rails by the Dry-Blast System

The Rebuilding of the Quebec Bridge

The Current Supplement

The Morehouse Comet Observed

A Few Facts about Fakes

By J.F. Springer

Reconstruction of the Baltimore & Ohio Bridge Over the Susquehanna River

By Day Allen Willey

The Collins System of Long-Distance Wireless Telephony

Public Service Car Fender and Wheel Guard Tests

IV.--The French Navy of To-Day

The “Flip-Flap”

By the English Correspondent of the Scientific American

Protecting Trains Under the East River

By G. W. Mac Murray

Shaft Sinking by the Freezing Process

By Our English Correspondent.

Ore Concentrator

Attachment for Letter Boxes

An Improved Pipe Wrench

A Simple Package Tie

Patent Department

Shore Anchor


  • Departments


  • Recently Patented Inventions

  • New Books, Etc.

  • Notes and Queries

  • Index of Inventions

  • Patents

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September 19, 1908

Confronting Common Wisdom