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Steam and Gas Fire Engine

Mr. Riddle and Carpets

Improvement in Railroad Chairs

The Largest Pile of Specie in the World

The Cause of the Potato Disease


A New Feat--Walking on an Inverted Plane

To Mariners on the Pacific Coast

Cheap Gas in London

Sacred Geography

Cold Water and Burns

Petition for Extension of a Patent

Scientific Memoranda

Barnum's Equipage

Improved Method of Softening Horn in Comb Manufacture

Improvement in the Drawing Parts of Carriages, &C

Ship Propeller Invention

Improvement in Machinery for Sawing Timber

Improvement in Horse Powers

Improvement in Bedsteads

Excitement about Mending the Patent Laws

Cheap Postage

The Patent Office in Danger

Patent Office Report for 1850--No. 6

London Great Exhibition--First Prizes--Meat Biscuit

The Fire Annihilators Annihilated

Large Sales of a Large Work

Woodworth's Patent Planing Machines

List of Patent Claims

New York Times and the Patent Laws

Patent Claims

New Edition of the Patent Laws

Postage on Books

On Sending Receipts

Back Numbers and Volumes

Tea on the Himalays

Iowa Coal Field

New Prospectus to Mechanics

Medical Properties of the Skull-Cap

On Interfering Horse-Shoes and the Remedy

Treatment of Rheumatism by Lemon Juice

Rheumatic Fever Treated with Acetate of Potash

Oil Varnishes

Tobacco for Wounds


  • From the Editor

    To Correspondents

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