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Reversible Best Single Wheel Grinder

Revolving Steam Engine

Chemistry in Leipsic

Water as Fuel

The Intellectual Enjoyments of Science

Pile Driving and the Laws of Impact

Contagious and Infectious Diseases


The Greek New Testament

Singular Cause: of Fire

An Improved Form of the Selden Steam Pump

Corn Plow and Marker

Astronomical Notes

Washing Machine

Nail Driving Hatchet

Child's Hat

Scientific and Practical Information

The Increasing Wealth of the World

Horseshoe Nail Machinery

Decisions of the Courts

Recent American and Foreign Patents

How Shall I Introduce My Invention?

Answers to Correspondents

Communications Received

Canadian Patents


  • Departments

    New Books and Publications

  • Notes and Queries

  • Business and Personal

  • Index of Inventions

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April 05, 1873

20% Sitewide for President's Day