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The Completion of the North River Tunnel

The Motive Power for High-Pressure Fire Service

Direct-Current Traction on the New York Central

The British Naval Programme for 1904

By our london correspondent

Science Notes - March 19, 1904

De Glehn Compound for the Great Western Railway, England

A Double-Deck Car for Rapid Transit

An Improved Grain Valve

Steam Turbine of 11,000 Horse-Power

New Pruning Shears

Experiments upon the Pressure of Wind at the Eiffel Tower

By Emile Guarini

Thawing Out Frozen Water Pipes by Electricity from Storage Batteries

Our Knowledge of the Moon

Electricity in the Household

The Japanese Sword Exercise.--I

By G. H. Tilden

The Cahokia and Surrounding Mound Groups

By D. I. Bushnell


  • Departments

    Correspondence - March 19, 1904

  • Legal Notes - March 19, 1904

  • Recently Patented Inventions - March 19, 1904

  • Business and Personal wants - March 19, 1904

  • New Books, Etc. - March 19, 1904

  • Notes and Queries - March 19, 1904

  • Index of Inventions - March 19, 1904

  • Patents - March 19, 1904

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March 19, 1904

Of Shamrocks and Science

Happy St. Patrick’s Day