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Willis' Perpetual Motion

Coal in a Curious Place

Foreign Scientific Notes

List of Patent Claims

The Cotton Gin

Flour and Bread, Bakers, Millers, &C

Pension for Propeller Improvements

The Way to Keep a Razor Sharp

Alder Flowers, Oak Bark, Swamp Maple, and Tartar in Dyeing Colors

How They Make Maccaroni

Mechanical Equivalents in Law

The Chinese Yam

Breaking of Railway Car Axles

Saw Set or Circular Saws

The French Imperial Cradle

Improved Brick Machine

Scott Russell Failed

Time Ball Signals

Remarks on the Report of the Commissioner of Patents

Important Patent Decision in the United States Supreme Court

Gold and its Uses.--No. 1

Recent American Patents

New System of Weights and Meauress

Wonderful Presence of Mind of a Railroad Conductor

Photographic Pictures on Silk

Selling Patent Property by Sample

Making a Needle

Stone Tortoises, Hyenas, &C

American Turret Clocks for Siam

Recent Foreign Inventions

Important Items


Inventors, and Manufacturers

Whipple's Patent Ripper Blocks

The Power of Falling Water


  • Letters

    To Correspondents

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