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Remarkable Efficiency of Elevated Railway Electric Service

The Two Hundred and Fiftieth Anniversary of New York City

The Abuse of a Noble Sport

Cost of High-Speed Steamship Travel

Alkali Manufacture by Electricity from Natural Salts

Prof. Goodspeed on Secondary Radiation Induced by X-Rays

The Ostergren Fuel Oil Engine

A Method of Making Glass Models of Mines

The Soo Ship Canal System--the Fiftieth Anniversary of its Commencement

By Day Allen Willey

An Improved Type of Swage Block

A New Apparatus for Determining the Resistance of Road Vehicles to Traction

Scientific Poultry Raising

The New Springfield Magazine Rifle

Ruhmer's System of Light-Telephony

Business and Personal Wants


  • Departments

    Science Notes - June 6, 1903

  • Legal Notes - June 6, 1903

  • Reecently Patented Inventions - June 6, 1903

  • Index of Inventions - June 6, 1903

  • New Books Etc. - June 6, 1903

  • Notes and Queries - June 6, 1903

  • Patents - June 6, 1903

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