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Scientific American Magazine Vol 66 Issue 24

Scientific American Magazine

Volume 66, Issue 24

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Features

Another New Patent Bill

An Hydraulic Air Compressor

An Improved Shingling Gauge

An Electric Insulator for Boilers and Condensers

A Sacramental Altar for Home Use

Siphon for Domestic Uses

An Improved Pipe Wrench

Lighthouse Illumination

The New Boats of the Hoboken Ferry Company, New York

Mantidae

Departments

New Books and Publications- June 11, 1892

Recently Patented Inventions- June 11, 1892

Business and Personal- June 11, 1892

Notes and Queries- June 11, 1892

To Inventors- June 11, 1892

Index of Inventions- June 11, 1892