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Our Decadent Merchant Marine

The Traffic of a Great City

The Naval Programme for 1909




The Submarine Mine

By George Forrest

Aeroplanes and Motors at the First Paris Aeronautical Salon

The Scientific Aspect of Earthquakes and Volcanoes

By W. J. Murray

Aeroplanes in Warfare

Multi-Hull Steamships

The Meat Industry of America.--I

Concrete Steel Caissons

Curious Life Histories

A Hydraulic Test for the Boiler

By A. C. Laurence

Handy Man's Workshop

Mending a Cracked Bottle

By W. J. C.


  • Departments

    Correspondence - January 23, 1909

  • Patents - January 23, 1909

  • Recently Patented Inventions - January 23, 1909

  • Index of Inventions - January 23, 1909

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