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Manufacture of Heavy Guns for U. S. Navy

Meeting of the National Electric Light Association

Position of the Planets in March

Long Distance Telephone Concerts

A Driving Mechanism for Hand Drills

A Steam Snow Flow

An Improved Rotary Engine

The Jamaica Exhibition

Simple Milling Attachment for Foot Lathes

The Chilian Nitrate of Soda Mines and Works

Olive Oil Lamp

An American Banyan Tree

Experimental Science- February 28, 1891

By Geo. M. Hopkins

The Scientific American Publications for 1891

The Scientific American Established 1846


  • Recommended

    New Books and Publications- February 28, 1891

  • Departments

    Notes & Queries- February 28, 1891

  • Notes and Queries- February 28, 1891

  • Recently Patented Inventions- February 28, 1891

  • Index of Inventions- February 28, 1891

  • To Inventors- February 28, 1891

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