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The Hudson River Tunnel-New York End

The Stock Car Competition

Solid Petroleum

Criminal Neglect in Railway Management

Plating Cotton with Silk

Marine Economy

Engineering Inventions

Improved Shovel Plow

Improved Wire Fence

Kohler's Extinguisher for Argand Burners

Improved Drilling Machine

Improved Horseshoe

Miscellaneous Inventions

Mechanical Inventions

Rheometric Apparatus

By Marcel Deprez

New Coin Scale

Explosion of Two Boilers at Pittsburg, PA

Botanical Notes

Communication Received


  • Departments

    Recent Inventions

  • Index of Inventions

  • Notes and Queries

  • Business and Personal

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