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  • Departments

    The Erie Canal Problem

  • Excavations at Susa

  • Automatic Machinery and the Russian Peasant

  • John Ruskin

  • Stonehenge

  • The Green Ray at Sunset

  • Death of Prof. Hughes

  • The New Mining District at Cape Nome

  • An Improved Electro-Magnetic Apparatus

  • Repairing a Propeller Shaft at Sea

  • Stassano Process

  • The New York Rapid Transit Tunnel

  • Correspondence

  • A Portable Search Light for Fire Department Use

  • The Ibis

  • New Excavations at Carthage

  • The Proposed Pneumatic Balance Locks for the Erie Canal

  • An Early Reaping-Machine

  • Recently Patented Inventions

  • Business and Personal

  • To Inventors

  • Notes and Queries

  • Index of Inventions

  • Crops in 1899

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