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Great French Tunnel

Longest Railroad

European and American Railway

Demonstration of the Earth's Rotation

How to Make Vinegar

Manufacture of Soaps

Hard White or Curd Soap


Patent Decision

Hard Mottled Soap

Yellow or Rosin Soap

Respect for Mr. Lawrence, Chief Clerk of the Patent Office

On Probable means of Augmenting the Ascensive Power of Locomotives

American Association for the Advancement of Science

Interesting to Telegraphers

Manufacture of Paper Mache

Machine for Flocking Cloth

Improved Hoisting Machine

To Make Artificial Marble and Stone

Noiseless Wheels

New Steam Drill

Improved Spike Machine

New Planing Machine

Improved Plow

New Clipper-Ship Flying Cloud

The Presidential Tour

America at the Great Exhibition

Practical Remarks on Illuminating Gas

List of Patent Claims

New Edition of the Patent Laws

Patent Claims

Back Numbers and Volumes

To make Copying or Transfer Paper


Ice Mountain in Virginia

Good Summer Bread

Petition for an Extension of Patent


Coal of Pennsylvania

A New Substance Made from Cannel Coal


  • From the Editor

    To Correspondents

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May 31, 1851

Science for the Modern World