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Air Resistance of Electric Cars

Cement Bases for Wooden Telegraph Poles

Growth of the Hudson River Steamboat

The use of Clay Cones in Steel Heating

"Galvanizing" with Zinc-Aluminium Alloy

Sanitation of the City of Washington--I

The Aqueduct and Filtration Plant

By Ben Winslow

Review of the Atlantic Fleet by the President

Wreck of the Duluth-Superior Drawbridge

Brick and Tile Making in the Tropics

By C. C. Fuller

The Screw-Propelled Swimmer

By the Paris Correspondent of the Scientific American

The Kromarograph--An Automatic Music-Recording Apparatus

By Alfred Gradenwitz

An Improved Puff Box

A New Type of Sixty-Foot Summit Level Canal for Panama

By W. F. Cleveland

Business and Personal Wants

Read This Column Carefully—You will find inquiries for certain classes of articles numbered in consecutive order. If you manufacture these goods write us at once and we will send you the name and address of the party desiring the information...


  • Departments

    The Heavens in September

  • Correspondence

  • Notes and Queries

  • Recently Patented Inventions

  • Index of Inventions

  • New Books, Etc.

  • Patents

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