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Wade's Patent Spark Arrester

Old Canals of Egypt

Bitter Almond Soap

Soap a la Role

Soap an Boquet

Starkey's Soap

The Great Industrial Exhibition and Incidents Connected Therewith

The Locust Has To Sing

Lowell Mechanics' Fair

Musk Soap

Orange Flower Soap

Transparent Soaps

Cinnamon Soap

Windsor Soap

Floating of Rafts

Iron Ore in Essex County, N. Y

Natural Soap in New Mexico

Electro-Magnetism as a Moving Power

Gold Hunters

Improved Pump

Machine for Employing the Water-Power of Rivers

Machine for Printing Oil Cloth

Improvement in Carriage Springs

Electro-Magnetic Fire Alarm

Fire Annihilator

Tanning Notice


Ruttan's System of Ventilation

Application for Extensions of Patents

Crystal Palace for Sale

To Quell Fire

Scarlet Fever

List of Patent Claims

Practical Remarks on Illuminating Gas

Back Numbers and Volumes

New Edition of the Patent Laws

Patent Claims

Post Office Stamps

To Preserve Vegetable Matters for Exportation, &C

Immense Coal Bed



Area of the English Coal Mines

Cotton Factories South and West

Ingenious Invention


The Screw for Steamers

Sounding the Gulf Stream

Solar Influence


  • From the Editor

    To Correspondents

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June 21, 1851

Confronting Common Wisdom