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Features

New York Crystal Palace for the Exhibition of Industrial Products

Fair of the American Institute

A New Kind of Brick

Preservation of Timber

On Rainbow Colors

Gold Deposits in Canada

Piston Packing

Machine for Sweeping Streets

Printing Types

Switzer's Screwdriver

New Corn Planter

City Railroads

A New Styptic

Portable Mills

New Bun Cutting Machine

Hanley's Castors for the Legs of PianofortesTables &c

Car and Portable Railroad

New York City

Poisonous Chloroform—Tests for its Purity

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"The Niagara Mail" vs. "Scientific American"

Magnetic Balloon Ascent

Important Patent Cases

Large Boilers

Submarine Telegraph

Colored Daguerreotypes

Patent Claims

Prizes

Patent Laws and Guide to Inventors

Cheap Postage—Important to Subscribers

Back Numbers and Volumes

Mining Machinery

Mechanics

Race of Clippers from Canton

The Hillotype

Hobbs and Chubb Again

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    To All Whom It May Concern

  • To Correspondents

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Introducing Scientific American Health & Medicine

Introducing Scientific American Health & Medicine