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Crystallization of Metal under Stress

The Yacht "Columbia"

The Uses of Florida Moss

Prof. Chandler Honored

Meeting of the American Society of Mechanical Engineers

Topographical Maps

The Tugrin Fog Dispeller

The Rowland Telegraph System

The Durability of Typewriter Ribbons


A Deep-Mine or Relay Pump

An Improvement in Furnace Construction

A Quaint Old Japanese Clock

A Novel Boiler-Tube Cutter and Expander

A Device for Removing Dents from Gun-Barrels

A Rapid Way of Marking Out Cloth Patterns

A New Shade-Roller Attachment

A Knockdown Cask

The 10-Inch Gun Explosion at Sandy Hook

The Class Microscope

The Naval Academy as It Is

By H. Marion

The Samoan Islands


  • Letters

    Correspondence - May 6, 1899

  • Recommended

    New Books, Etc. - May 6, 1899

  • Departments

    Business and Personal - May 6, 1899

  • Recently Patented Inventions - May 6, 1899

  • Index of Inventions - May 6, 1899

  • Notes and Queries - May 6, 1899

  • Patents - May 6, 1899

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May 06, 1899