Scientific American Magazine Vol 13 Issue 35

Scientific American Magazine

Volume 13, Issue 35

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Features

American-Built Russian Steamers

Polytechnic School in New York

A Bridge Broken

Stalactites

Novel Rotary Steam Engine

Yellow Metal Ship Fastenings

Improved Card Press

Improved Wagon Seat

Improved Oscillating Pump

Nail Machine

India Rubber Extension Cases

Why we Oppose the Extension of Patents

American Cotton is King

Employment for our Poor in the West

The Infected Ship

New Printing Press

Paddle Wheel

Apparatus for Impregnating Liquids with Carbonic Acid Gas

Improved Hatchet

Self-Indicting Balance Barometer

The Decision in the Reaper Patent Case

New Smut Machine

Improved Breakwater

More Potash

Improved Cotton Picker

American and European Railroads

Mechanics

Departments

Correspondents - May 8, 1858