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Wooden Railway Ties

The Hudson River Ice Harvest

New Gas and Petroleum Motor

A Holdback Device for Vehicles

An Improved Halter

A Tool Holder That Holds

Photographic Notes- February 7, 1891

Destruction of Electric Wires by a Snow Storm

The Fall River Steamer Puritan

An Improved Carriage Spring

A Crate for Shipping and Exhibiting Poultry, Etc.

List of Books on Electricity

The Scientific American- February 7, 1891

Experimental Science- February 7, 1891

By Geo. M. Hopkins


  • Letters

    Correspondence- February 7, 1891

  • Recommended

    New Books and Publications- February 7, 1891

  • Departments

    Notes & Queries- February 7, 1891

  • Notes and Queries- February 7, 1891

  • Recently Patented Inventions- February 7, 1891

  • Business and Personal- February 7, 1891

  • To Inventors- February 7, 1891

  • Index of Inventions- February 7, 1891

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Dwindling Supply. Increasing Demand.

Dwindling Supply. Increasing Demand.

Solving the Water Crisis