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Features

The Eclipse Steam Generator

Taxing Power of the Legislature

A Cometary Retrospect

Recent Printing Press Improvements

Patented Car Improvements

The Mines and Minerals of India

The Clamond Thermo-Electric Battery

Casting the Standard Meter

Fountain Cave, Virginia

Novel Improvements in Steam Boilers

Scientific and Practical Information - July 18, 1874

An Improvement in Steam Pumps

Improved Hay and Cotton Press

A Novel Cooking Stove

More Curious Vegetation

Medical Notes - July 18, 1874

Erysipelas.

A Petroleum Motor

Recent American and Foreign Patents - July 18, 1874

Answers and Correspondents - July 18, 1874

Communications Received - July 18, 1874

Candian Patents - July 18, 1874

Departments

  • Letters

    Correspondence - July 18, 1874

  • Recommended

    New Books and Publications - July 18, 1874

  • Departments

    Business and Personal - July 18, 1874

  • Index of Inventions - July 18, 1874

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Dwindling Supply. Increasing Demand.

Dwindling Supply. Increasing Demand.

Solving the Water Crisis