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Reclaiming Our Coast Lands

Double-Decking the Brooklyn Bridge

Germany's Export Trade in Her Hour of Need

Possibilities of a Steel Panic

The Torpedo-Boat Fiasco

New Salt of Glucinium

Science Notes

A New Polar Expedition

Mail Transportation in Cities

By Waldon Fawcett

Home-Made Electric Night Lamp

By George M. Hopkins

Portable Coal-Loading Machine

Curious Horn Growth

How to Make a Cheap Hydrometer

By Parker S. Simonsen

The New York Assay Office

The Improvement of Washington

By Our Washington Correspondent

The Yerkes Observatory Two-Foot Reflector

By Mary Proctor

A Pigeon Ranch

By Charles F. Holder

Business and Personal Wants


  • Departments

    New Books, Etc - February 15, 1902

  • Index of Inventions - February 15, 1901

  • Recently Patented Inventions - February 15, 1901

  • Notes and Queries - February 15, 1901

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