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Railroad Completed

Whipple's Patent Machine for Brick Manufacturing

Gas from Wood

Tunnel at Buffalo

Stopping of Flour Mills

The Useful More Enduring than the Magnificent

To Deaden the Sound of an Anvil

Straw Bonnet Manufactory


Opening of the Great Exhibition—London on the 1st of May

Matters and Things Connected with the Great Exhibition

Ship Measurer

New Railway Torch for Signals

Knapp's Self-Arresting Abdominal Supporter

New Patent for Rising and Descending Inclinations in Railways

Improvement in Carriage Springs

Improvement in Apple Mills

New Cloth Measuring Machine

Theory of the Rifle

New Theory of the Central Heat of the Earth and the Cause of Volcanoes

Young Mechanics—The Way to Rise

The Seventeen Year Locusts

The Patent Office

Pay Your Postage

Electro-Magnetism as a Prime Mover

Astronomical Observations at Washington

Cotton Crop Prospects

List of Patent Claims

Blasting Rocks

Practical Remarks on Illuminating Gas

Back Numbers and Volumes

New Edition of the Patent Laws

Patent claims

Sugar Refining Machinery


American Sponges and Florida Salt


  • From the Editor

    To Correspondents

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