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The Darien or San Blas Tunnel Canal Route

Revival of the Old Hudson River Tunnel Scheme

Science Notes

Our Forthcoming Automobile and Outing Number

Steam Boiler Inspection

A Variable Speed Gear for Pumps

Photographing by Electric Headlight

By Waldon Fawcett

A Simple Method of Etching Pictures

The Santos-Dumont Airship No. 7

Improved Railjoint

The New Redheugh Bridge at Newcastle-On-Tyne

Winter Railroading in Alaska

By Enos Brown

Some Aeronautical Experiments

The Duke of Saxe-Coburg-Gotha's Collection of Nefs

By the English Correspondent of the Scientific American.

The Sands of Cape Cod

By L. P. Gratacap

Business and Personal Wants


  • Departments

    Index of Inventions - February 22, 1902

  • Recently Patented Inventions - February 22, 1902

  • New Books, Etc. - February 22, 1902

  • Notes and Queries - February 22, 1902

  • Patents - February 22, 1902

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