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Features

Manufacture of Heavy Guns for U. S. Navy

Meeting of the National Electric Light Association

Position of the Planets in March

A Driving Mechanism for Hand Drills

Long Distance Telephone Concerts

A Steam Snow Flow

An Improved Rotary Engine

The Jamaica Exhibition

Olive Oil Lamp

The Chilian Nitrate of Soda Mines and Works

Simple Milling Attachment for Foot Lathes

An American Banyan Tree

The Scientific American Publications for 1891

Experimental Science- February 28, 1891

By Geo. M. Hopkins

The Scientific American Established 1846

Departments

  • Recommended

    New Books and Publications- February 28, 1891

  • Departments

    Notes & Queries- February 28, 1891

  • Recently Patented Inventions- February 28, 1891

  • Notes and Queries- February 28, 1891

  • Index of Inventions- February 28, 1891

  • To Inventors- February 28, 1891

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February 28, 1891

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