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Features

Col. Goethals on the Culebra Slides, State Versus Federal Control of the National Forests and more

New Types for the Japanese Navy, Dussaud's "Cold Light"

By Oscar Parkes

Shall We Build Battle Cruisers?

Every Big-gun Cruiser Would Mean One Less Battleship in the Fighting Line

By R. D. Gatewood

The Enlargement of the Aswan Dam

By the English Correspondent of the Scientific American

The Altamira Wall Paintings

Some Remarkable Specimens of Primitive Man's Art

Cutting Keyways With a Lathe, Making a Socket Wrench

By H. D. Chapman

Chair Making One Hundred Years Age, Lettering Triangle

By Albert F. Bishop

Strap Hinges vs. T-Hinges

By G. W. D.

Sharpening Edge Tools

By W. D. Graves

Notched Lathe Dog, Straightening a Back Saw

By William Grtzinger

Automatic Fog Gun

By E. O. Carter

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    Inventions New and Interesting - February 8, 1913

  • Recently Patented Inventions - February 8, 1913

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February 08, 1913

Think Outside the Gift Box