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Rembert's Reaping, Threshing, and Separating Machine

To Preserve Leeches

To Soften Putty, and Remove Glass Without Breaking

Health--How to Preserve it

Road to the Pacific

The Chlorides of Gold

Reduction of Fare on the Jersey Railroad

Surgical Operation

Expedition of Sir John Franklin

Handsome Editor

Sponge Fishing

The Scientific American

A Polar Bear

The Vatican at Rome

Things as They Exist

Turkish Plan of Curing Founder in Horses

The Cotton Experiment in Australia

American Indigo

Design in the Natural World

Fast Running on the Central Road

Self-Made American Opticians


Patent Oat Flour

Improved Fire-Arm

Improved Journal Box

New Algebraic Method

New Way to Make Red Hot Shot

New Paddle Wheel

Preparation of Sugar

The Great Rotary Engine

Heal's Patent Process for Purifying Feathers

A Hard Lot

Centre of Gyration

What Water Can Do

Great Fair of the American Institute No. 2

List of Patent Claims

New Dam at Hadley Falls

New Discovery in Agriculture

Riots at Philadelphia

Scientific Memoranda

Discovery of Ventilation

Notice to Editors

Patent Office Report for 1848

Patent Suits

That Fossil Ape

Atlanta, Ga

Expensive Shirt Bosoms

Trial by Jury in Patent Cases,--No.5

Taxation for Free Schools

American Female Artists

Scientific Art

To Mechanics and Inventors

The Best Mechanical Paper

Meteorological Observations

Hollow Iron Moulding

Floating Bee-House

Fatal Steamboat Accident

Elastic Force of Steam

City Life


  • From the Editor

    To Correspondents

  • Letters

    Cingalese Jewellers and Their Forges

  • Experiments on the Steam Engine

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October 20, 1849

20% Sitewide for President's Day