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Improved Bolt and Rivet Machine, New Theory of Iron, and more

A Woolen Factory Operated By Chinese Workmen

Recent American Patents

An Invention Worth Ten Thousand Dollars a Day

The Steamer Saxon and Her Submarine Appartus

Notes on New Discoveries and New Applications of Science

Polytechnic Association of the American Institute

Editorial Correspondence

To Our Advertising Patrons

M'Neil's Beefsteak Pounder


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    Notes and Queries

  • Correspondence

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