Scientific American Magazine

New York Crystal Palace for the Exhibition of Industrial Products

Fair of the American Institute

Preservation of Timber

Gold Deposits in Canada

On Rainbow Colors

A New Kind of Brick

Car and Portable Railroad

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

New York City

Magnetic Balloon Ascent

Poisonous Chloroform—Tests for its Purity

"The Niagara Mail" vs. "Scientific American"

Important Patent Cases

Colored Daguerreotypes

Submarine Telegraph

Large Boilers

Prizes

Cheap Postage—Important to Subscribers

Back Numbers and Volumes

Patent Claims

Patent Laws and Guide to Inventors

Mechanics

Hobbs and Chubb Again

Mining Machinery

Race of Clippers from Canton

The Hillotype

To All Whom It May Concern

To Correspondents