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Features

The Locomotive of the Future--A Suggestion

Submarines for the British Navy

Behr on His High-Speed Monorail System

The National Academy of Sciences

By Marcus Benjamin

Death of Richard P. Rothwell

Death of Prof. Henry A. Rowland

The Ordnance Board's Test of Thorite

A New Weather Cannon

Parsons 1,000-K. W. Turbine and Alternator

How to Make a Gramophone

By Will. B. Stout

Raising A Submerged Steamship

Army Transport Service in the Philippines--II

An Automatic Boiler-Feeder

An Improved Plow

A Wheat Hospital on Lake Superior

Some New Features in Ant Life

By J. Carter Beard

The Cooper Hewitt Lamp

Business and Personal Wants

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    Recently Patented Inventions - April 27, 1901

  • Index of Inventions - April 27, 1901

  • New Books, Etc. - April 27, 1901

  • Notes and Queries - April 27, 1901

  • Patents - April 27, 1901

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April 27, 1901

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