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Features

Improved Planer Bar

A New Reading of an Old Record

The Circulation of the Blood

The Case of Phelps, Dodge & Co

The Broadway Underground Railway

Injustice to Workmen

Fireproof Safes

Codeine

The Problem of the Coming Transits

Scientific and Practical Information

Death of Baron von Liebig

Bale Tie Fastener

Early History of Steam Navigation--The First Screw Propeller

Stevens Institute Lectures--Sunlight and its Source

By Henry Morton

The Wonders of the Egg

Trials of the Ellis Vapor Engine

Improved Spectroscope

Improved Fly Trap

Improved Wagon Brake

New Machine for Sinking Well Tubes

The Agricultural Machine Works of Chicago

Chemical Notes

Decisions of the Courts - May 3, 1873

United States Circuit Court--District of Massachusetts

Recent American and Foreign Patents - May 3, 1873

Answers to Correspondents - May 3, 1873

Best Mode of Introducing New Inventions

Communications Received - May 3, 1873

Departments

  • Departments

    Correspondence - May 3, 1873

  • Notes and Queries - May 3, 1873

  • Business and Personal - May 3, 1873

  • Index of Inventions - May 3, 1873

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May 03, 1873