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Hydrostatics Applied to Revolving Iron Forts

Patents and Claims

Manufacturing, Mining, and Railroad Items

Brown's Vegetable Masher

Condition of the Patent Office

The Velocipede Mania

To City Subscribers

Horse and Foot

Permanent Ways Versus Light Trains

Cleanliness in Shops

Patent Offices

The Jonval vs. the Fourneyron Water-Wheel

The Manufacture of Iron--A New Process

The Telescope--A Lecture Delivered before the American Institute by Prof. Alexander


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December 23, 1868

Science for the Modern World