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Features

The McDougall Whaleback Steel Vessel

Fast Boats for the Navy

The Casino and Pier at the Exhibition

Guiley's Electrical Block System for Railways

Latham's Grass Collector for Lawn Mowers

Some Suggestions in Microscopy

By M. Hopkins

A One Dollar Photographic Outfit

A Warship Rams a Whale

Gunner's Arm Rest

Rack Attachment for Theater Chairs

Drawing of Financial Bills by the Casanova Apparatus

Great Spools of Wire

Departments

  • Letters

    Correspondence- July 4, 1891

  • Recommended

    New Books and Publications- July 4, 1891

  • Departments

    Business and Personal- July 4, 1891

  • Recently Patented Inventions- July 4, 1891

  • Notes and Queries- July 4, 1891

  • To Inventors- July 4, 1891

  • Index of Inventions- July 4, 1891

  • Patents- July 4, 1891

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July 04, 1891

Help Us Reforest the Mississippi River Valley

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