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Features

The Nickel and Copper Mines at Sudbury, Ontario

The Professional and Practical Engineer

The American Public Health Association

Damage by Water in Peru

An Improved Lamp

A Hand Exerciser for Pianists

The Evans System of Frictional Gearing

An Improved Ash Sifter

An Improved Band Cutter and Feeder

An Improved High and Low Water Alarm

The Remington-Lee Military Magazine Rifle

An Improved Price Indicator for Scales

Building the Armored Cruiser Maine

Electro-Plating Dynamo

An Improved Shutter Worker

An Improved Water Wheel

Improved Web Printing Machine

Mount Stephen

Photographic Notes- October 5, 1889

The Seychelles Islands

By Nicolas Pike

To Inventors- October 5, 1889

Departments

  • Departments

    Notes and Queries- October 5, 1889

  • Business and Personal- October 5, 1889

  • Recently Patented Inventions- October 5, 1889

  • Index of Inventions- October 5, 1889

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Dwindling Supply. Increasing Demand.

Dwindling Supply. Increasing Demand.

Solving the Water Crisis