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Features

Molecular Motion the Fundamental Problem of Nature

Patent Punching and Shearing Machine

A List of Velocities

Gold Pen Making

Improved Flush Strap Hinge

Glasgow University Buildings

Photographic Hints

Scientific and Practical Information - September 21, 1872

Knitted Goods and Their Manufacture

Grosvenor's Self-Lubricating Loose Pulley

Wheel and Roller Sash Catch

Improved Road or Farm Gate

Meeting of the British Association—Address by a New York Herald Reporter—Livingstone in Africa

The Cincinnati Industrial Exposition - September 21, 1872

Car Coupling Dangers

Serious Marine Disasters—Improved Safety Appliances Greatly Needed

An Auction Sale of Models at the Patent Office

The Opening of the American Institute Fair

Table of Velocities

The American Association for the Advancement of Science

Extension of Patents. Value of the Invention.

Recent American and Foreign Patents - September 21, 1872

Practical Hints to Inventors - September 21, 1872

New Patent Law in Canada - September 21, 1872

Foreign Patents—A Hint to Patentees - September 21, 1872

Departments

  • From the Editor

    Answers to Correspondents - September 21, 1872

  • Letters

    Correspondence - September 21, 1872

  • Departments

    Business and Personal - September 21, 1872

  • Notes and Queries - September 21, 1872

  • Index of Inventions - September 21, 1872

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