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Locomotive Race at Lowell

Cuba Once a Part of the American Continent

The Pacific Railroad

Railroads to the Gulf of Mexico

Locomotives and Brooklyn Authorities

Improved Machinery for Dressing Mill

Singular Case

New Propeller

Horse Power Ditching Machine

Something for Farmers—Exporting Peaches

Great India Rubber Patent Case

Commissioner to Examine into the Factories

Improvement in the Manufacture of Gongs

Foreign Correspondence

Night Lamp for Ships

Improved Melodeons

Florida Salt


Trade between the United States and Canada

The Allegheny River

Locomotives for the South

Discovery Relating to Bees

Improvement in Attaching Hubs to Axles

Destruction of Vines in Europe

American Clipper Ships

Cast Iron Fronts of Houses

A Moving Mountain

The American Arctic Expedition

Adumbration of the Creator's Transcendent Wisdom in the Adaptation of Things

Improvement in Apparatus for Boring for Water

Improvement in Pumps

New Wire and Picket Fence

Improvement in Musical Instruments, Combined Pianoforte and Flute

Improved Heating Stove

New Water Wheel Buckets

Patent Office Report for 1850--No. 4

Mechanical Fairs

Propeller Steamships

South Carolina Institute

Astronomical Observatory in Albany

List of Patent Claims

Machine for Making Ladies' Combs

Aerial Voyage

Spirit Varnishes

Patent Claims

New Edition of the Patent Laws

On Sending Receipts

Binding Volume 6

Postage on Books

Back Numbers and Volumes

The Great Mechanics' Hall, at Baltimore

To Mechanics


  • From the Editor

    To Correspondents

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