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Brick Roads for the Automobile

Why Not the Electric Fire Engine?

The Fulton Airship Flight Contest

Steamship Vibration

Electricity

Science

Engineering

The Turbines of the Battleship North Dakota

The Eyes of Animals

By Percy Collins

Rainmaking by Explosion

Formulæ for Obtaining Integral Sides of Right-Angled Triangles

The Alaska-Yukon Exposition

By William H. Raymond

An Experiment with a Glider

Chemical Flasks from Electric Light Globes

By K. Ragan

Handy Man's Workshop

Furnishing the Workshop—VI (Continued from the issue of April 3rd.)

By I.G. Bayley

A Remedy for Loose Wood Screws

By G. W. Naylor

Rotagons

By E. F. Pabody

Novel Heat Motor

By R. V. Heuser

Another Joint for Handy Man's work Bench

By Charles Lurcott

Hardening Copper

By H. D. Chapman

New Books, Etc.

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April 17, 1909

See the World from a Different Perspective

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