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Central Park Vegetation

An Improved Hand Drill for Miners

A Ticket and Check Holder for Railroad Cars

An Improved Neck Yoke Fastening

Improved Cap Protector for Cartridges

An Improved Fastening for Lacing Cords

An Improved Door Fastener

An Improved Butter Tub

A Combination Tool for Loading Cartridges

Experiments Illustrating the Principle of the Dynamo

By M. Hopkins

The Volney W. Mason Hoisting Machinery at the Great Hay Depot of the New York Central Railway, New York City

Modern Military Appliances

A Simple and Powerful Stump Puller

Explosion of an Ostrich Egg

Special - April 21, 1888

Miscellaneous Inventions - April 21, 1888

Engineering Inventions - April 21, 1888

To Inventors - April 21, 1888


  • Letters

    Correspondence - April 21, 1888

  • Recommended

    New Books and Publications - April 21, 1888

  • Departments

    Business and Personal - April 21, 1888

  • Notes and Queries - April 21, 1888

  • Index of Inventions - April 21, 1888

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April 21, 1888