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Longitudinal Framing for the Herreshoff Cup-Yacht

Sylviculture and the Suez Canal

Water-Tube Boilers in the British Navy

Our Advancing Trade

Prospects of the New Erie Canal

Automobiles in New York

Method of Detecting Hypo in Photographic Work

Electrically Illuminated Fountains

The New Russian Battleship Czarevitch as She Will Appear When Completed for Sea

A Sugar Cane Reaper Wanted in Hawaii

Training School for New York Streetcar Motormen

Hydraulic Electric-Car Brake

The Omnigraph--An Instrument for Teaching Telegraphy

A Remarkable Salt Deposit

By Charles F. Holder

A New Wickless Oil Burner

An Improved Pipe-Wrench

The Wentworth Cotton Gin

To Inventors

Business and Personal Wants


  • Departments

    The Heavens in April

  • Correspondence - April 6, 1901

  • Recently Patented Inventions - April 6, 1901

  • Notes and Queries - April 6, 1901

  • Index of Inventions - April 6, 1901

  • Patents - April 6, 1901

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