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The First Inventor of Steamboats

Avery's Patent Platform Horse Power

A Geological Curiosity

Patent Soap

List of Patent Claims

Issued from the United states Patent Office

Improvement in the Safety Lamp

Paines Atmosphheric Light Patent

To Our Subscribers—End of Volume Six

Short Conversations on Mechanics—No. 6

Concluded

Some Poisons and their Antidotes

Substitute for Hops in Making Beer

Ozone

Notice

New Prospectus

Inventors and Manufacturers

New Edition of the Patent Laws

Subscribers and Regularity of Mails

Postage on Books

Patent Claims

American Yachts

Back Numbers and Volumes

Behold They Come

Fire Annihilator

Index

Inverted Locomotion

Scientific American for Binding

To Remove Stains from Mourning Dresses

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    To Correspondents--Our Index, & c

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September 13, 1851

See the World from a Different Perspective

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