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How We Get Ourselves Killed

Hysteria among the Admirals, The History of a Great Invention and more

Electric vs. Steam--A Tug of War

An Interesting Test of the Giant Electric Locomotive Built for a Western Railroad

Houses by the Bucketful

Latest Developments in the Construction of Identical Dwellings of Concrete in a Single Piece

By Floyd Hamilton Hazard

The Secret Telephone, Are Sound Waves Ever Visible?

By F. Honore

Dismantling the Fortifications of Heligoland

How the Germans are Carrying out the Terms of the Peace Treaty

Wealth from Waste

By Theodore Ruete

Wind Tunnels and Airplane Designs

How Aeronautical Engineers Check Up Their Designs in Model Form

The British Battle-Cruiser "Renown"

Some Particulars of the Fastest Big-Gun Ship Afloat

Fertilizing Oyster Beds, Fuel Oil in Sumatra and more


  • Departments

    The Service of the Chemist

  • Inventions New and Interesting - December 6, 1919

  • New Books, Etc. - December 6, 1919

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