Volume 6, Issue 30
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Features
From California
New Motive Power
Cold Water for Burns
Improvement in Wind-Mills
Keep your Back Warm
The Erie Railroad
The Mystery of the Electric Circuit
Bahama Sponges
Magnetism of the Atmosphere
Foreign Correspondence
The Cunard and Collins Steamers
Passages of the Atlantic Mail Steamships from Liverpool to New York, from Jan. 1 to April 3, 1851
Nasmyth's Improvements in Forging Heavy Masses of Iron
Norcross's Planing Machine
Improved Printing Press
New Smut Machine
Double Rotary Grinding Metallic Mill
An American Machine for Turkey
Give us the Name of the Inventor English Patent Laws
The Crystal Palace
The World's Fair in America
Electro-magnetic Annunciator for Hotels
Patent for Paine's Light
Rice and Its Cultivation
List of Patent Claims
Practical Remarks on Illuminating Gas
New Edition of the Patent Laws
The English Railway
Mechanics
Inventors and Manufacturers