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Features

Bridal Veil Falls, Snake River

To Water Supply for New York City

An Improved Burglar Alarm

An Improved Clinical Thermometer

Experiments on the Inexpansibility of Water and Contraction of Ice

By T. O'conor Sloane

An Improved Piano Lamp Bracket

An Improved Child's Swing

Improved Fender for Car Windows

A Spring Cover Oiler

An Improved Thill Coupling

Sieve Attachment for Thrashing Machines

An Apparatus for Heating and Steaming Grain

The New Rubber Tip Peael Mucilage Bottle

Improved Leather Belting

Photographic Notes- July 6, 1889

The Washington Arch of New York

The Vari in the Berlin Zoological Garden

To Inventors- July 6, 1889

Departments

  • Letters

    Correspondence- July 6, 1889

  • Recommended

    New Books and Publications- July 6, 1889

  • Departments

    Business and Personal- July 6, 1889

  • Notes and Queries- July 6, 1889

  • Recently Patented Inventions- July 6, 1889

  • Index of Inventions- July 6, 1889

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July 06, 1889

Complex Causes. Alternative Solutions.