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Consolidation of the Naval Bureaus

Double-Side-Door Trains on the Subway

Engineers Report in Favor of Lock Canal




A "Putting-On" Tool

The Exploration of the Upper Air by means of Ballons Sondes

By S. P. Fergusson

Impressions of American Inventors--I. Thomas A. Edison

Motoring on Runners

Furnishing the Workshop.--III

By I. Q. Bayley

Handy Man's Workshop

Home-Made Adjustable Socket for Tungsten Lamps

By John A. Bergstrom

How To Drill Through Brick and Soft Stone

By B. A. Johns

Another Method of Reducing the Range of a Springfield Rifle

By George E. Huggins

Bicycle Coasting Sled

By E. E. Clock


  • Departments


  • The Heavens in March

  • New Books, Etc.

  • Notes and Queries

  • Patents

  • Recently Patented Inventions

  • Index of Inventions

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