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Revolving Steam Engine

Reversible Best Single Wheel Grinder

Water as Fuel

Chemistry in Leipsic

Pile Driving and the Laws of Impact

The Intellectual Enjoyments of Science

Contagious and Infectious Diseases


Singular Cause: of Fire

The Greek New Testament

Corn Plow and Marker

An Improved Form of the Selden Steam Pump

Astronomical Notes

Nail Driving Hatchet

Washing Machine

Child's Hat

Scientific and Practical Information

The Increasing Wealth of the World

Horseshoe Nail Machinery

Decisions of the Courts

How Shall I Introduce My Invention?

Recent American and Foreign Patents

Answers to Correspondents

Communications Received

Canadian Patents


  • Departments

    New Books and Publications

  • Business and Personal

  • Notes and Queries

  • Index of Inventions

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Dwindling Supply. Increasing Demand.

Dwindling Supply. Increasing Demand.

Solving the Water Crisis