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Features

The Uses of Florida Moss

The Yacht "Columbia"

Crystallization of Metal under Stress

Prof. Chandler Honored

Meeting of the American Society of Mechanical Engineers

The Tugrin Fog Dispeller

Ozotype

The Durability of Typewriter Ribbons

Topographical Maps

The Rowland Telegraph System

A Deep-Mine or Relay Pump

An Improvement in Furnace Construction

A Novel Boiler-Tube Cutter and Expander

A Quaint Old Japanese Clock

A Rapid Way of Marking Out Cloth Patterns

A Device for Removing Dents from Gun-Barrels

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

Departments

  • Letters

    Correspondence - May 6, 1899

  • Recommended

    New Books, Etc. - May 6, 1899

  • Departments

    Recently Patented Inventions - May 6, 1899

  • Business and Personal - May 6, 1899

  • Notes and Queries - May 6, 1899

  • Index of Inventions - May 6, 1899

  • Patents - May 6, 1899

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Know Before You Vote

Know Before You Vote