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Railway Speed and Safety, First Fruits of the "Titanic" Disaster and more

The Aeroplane in the Military Maneuvers

The War Operations in Connecticut Clearly Point to the Necessity of Having a Large well Trained Corps of Aerial Scouts in our Army, Equipped with Machines Capable of Rising from Unfavorable Ground with two more Occupants...

Teaching the Farmer How to Use Electricity

A Circus Tent display of Farm Apparatus by a Central Station Company

By Thomas Commerford Martin

The Harbors of the Pacific Coast

Terminal Facilities for the Panama Canal Trade

By Wm. Hosea Ballou

Etching Glass with Hydrofluoric Acid

By Norman Barden

A Home-made Hygrometer

By C. S. Meeker

Improved System of Filtering

By Clarke E. Davis

A Simple Microphone and Reproducer

By C. C. Kiplinger

A Simple Wire-winding Apparatus

By Norman Barden

The Trade-mark as a Business Asset, The Elements of a Good Trade Mark--VII and more

By W. E. Woodward

The New Serum Treatment of Bleeding and Hemorrhage, Can the Baser Metals be Changed to Gold and more

By Leonard Keene Hirshberg

Antagonistic Body Juices


  • Letters

    Correspondance - August 24, 1912

  • Recommended

    New Books, Etc. - August 24, 1912

  • Departments

    Inventions New and Interesting - August 24, 1912

  • Recently Patented Inventions - August 24, 1912

  • Notes and Queries - August 24, 1912

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