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Features

The Manufacture of Photographic Apparatus

Summer Study for City Children

Problems in Economics

A Swinging Seat for Agricultural Implements

An Automatic Life Guard for Cars

An Improved Window Shade

A Carriage and Wagon Brake

A Hand Crimping Tool

The Electrical Conduit System in New York City

Electric Light Plant Steamer Bay State

Automobile Carriages

The North Sea Ship Canal

Departments

  • Letters

    Correspondence - July 20, 1895

  • Recommended

    New Books and Publications - July 20, 1895

  • Departments

    Recently Patented Inventions - July 20, 1895

  • Index of Inventions - July 20, 1895

  • Notes and Queries - July 20, 1895

  • Business and Personal - July 20, 1895

  • To Inventors - July 20, 1895

  • Patents - July 20, 1895

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Dwindling Supply. Increasing Demand.

Dwindling Supply. Increasing Demand.

Solving the Water Crisis