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The Great Gas Meter of the Consolidated Gas Company of New York

Incidents in Bird Life at the Park

The Navy's Needs

The Submarine Monitor Peacemaker

Improved Grain Conveyer

Safety Fastening for Lace Pins, Etc.

Sandpapering and Polishing Machine

Skeg Attachment for Vessels

The Capillary Siphon--Hero's Engine

By T. O'conor Sloane

Decisions Relating to Patents - December 4, 1886

U. S. Circuit Court.--Northern District of Illinois

Deprez's Galvanometer

By M. Hopkins

The New Spanish War Steamer Reina Regente

Some Ancient Inventions

Expulsion of Unburned Gunpowder from Cannons

Mechanical Invention - December 4, 1886

Engineering Inventions - December 4, 1886

Miscellaneous Inventions - December 4, 1886

Agricultural Inventions


  • Letters

    Correspondence - December 4, 1886

  • Recommended

    New Books and Publications - December 4, 1886

  • Departments

    Business and Personal - December 4, 1886

  • Notes and Queries - December 4, 1886

  • Index of Inventions - December 4, 1886

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