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Alternative Schemes for the Panama Canal

We Should Use the Metric System

Pipe Galleries in the New Subway

Electro-Technical Industries

By George E. Walsh

Some Costly Eggs

By Arthur H. J. Keane

Floating Depot for Coaling Warships

By Day Allen Willey

Proposed Excavation of the Panama Canal by Floating Dredges

A Rational Method of Cooling Gas-Engine Cylinders

By S. M. Howell

Bromelia Fiber

By Charles Richards Dodge

A Chair Designed for the Prevention of Seasickness

A New Composing Machine

Historical Photograph from the Sea of Japan

Adjustable Window Ventilator

Improved Cushion Sole for Shoes

Clothes-Line Support

An Improved Form of Telephone Instrument

Business and Personal Wants - January 20, 1906


  • Departments

    Correspondence - January 20, 1906

  • Recently Patented Inventions - January 20, 1906

  • Notes and Queries - January 20, 1906

  • Index of Inventions - January 20, 1906

  • New Books, Etc. - January 20, 1906

  • Patents - January 20, 1906

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January 20, 1906

Confronting Common Wisdom