Gregor Menzel's Steam-Boiler

Making Sugar From Chinese Cane-Juice

Burning Wet Tan Bark

New Manufacture of Gunpowder

Trials of Farming Machines

Allen's Mower vs. McCormick's Reaper

The Cotton Manufacture in the United Kingdom

Marvels of the Mississippi

Hartzler's Improved Pump

Hot-Air Ovens for Iron Furnaces

A New Aerial Chariot

The Aurora and Cosmical Phenomena

Improved Horse-Power

To Protect Animals From Flies

Cure for Insect Bites

A Very Good Suggestion

Death to Cockroaches

The Coal-Oil Manufacture

Deflection of Bridges, Ice, &c

Reliable History of Steam Navigation

Steam--Its Heat and Pressure

Gases in Water

A Column of Interesting Varieties

Ferries Wanted in England

Improved Gas Apparatus

Present State of the Patent Office

Old World Conservatism

Burrough's Paper-Cutting Machine

Important Patent Case

Scientific Progress

The Natural and the Artificial

A South-East Rain

Weekly Summary of Inventions

Extension Cases

The Four Organic Elements

Oxygen, Hydrogen, Nitrogen and Carbon

Canal Chain Propellers

Foreign Summary—Metals and Markets

Patent Claims

Issued from the United States Patent Office

Improved Cider and Sugar-Mill