Scientific American Magazine

Steam and Gas Fire Engine

Improvement in Railroad Chairs

The Largest Pile of Specie in the World

A New Feat--Walking on an Inverted Plane

Rails

The Cause of the Potato Disease

Mr. Riddle and Carpets

Cheap Gas in London

To Mariners on the Pacific Coast

Cold Water and Burns

Scientific Memoranda

Petition for Extension of a Patent

Sacred Geography

Barnum's Equipage

Ship Propeller Invention

Improvement in Bedsteads

Improvement in Horse Powers

Improvement in Machinery for Sawing Timber

Improvement in the Drawing Parts of Carriages, &C

Improved Method of Softening Horn in Comb Manufacture

Cheap Postage

The Patent Office in Danger

Patent Office Report for 1850--No. 6

The Fire Annihilators Annihilated

Large Sales of a Large Work

London Great Exhibition--First Prizes--Meat Biscuit

Excitement about Mending the Patent Laws

List of Patent Claims

Woodworth's Patent Planing Machines

New York Times and the Patent Laws

New Edition of the Patent Laws

Patent Claims

On Sending Receipts

Postage on Books

Back Numbers and Volumes

Iowa Coal Field

On Interfering Horse-Shoes and the Remedy

Treatment of Rheumatism by Lemon Juice

Rheumatic Fever Treated with Acetate of Potash

Oil Varnishes

Tea on the Himalays

New Prospectus to Mechanics

Tobacco for Wounds

Medical Properties of the Skull-Cap

To Correspondents