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Features

Cause and Cure of Split Rail Heads

Colorado Dam is Permanent

Is Rusting Electrolytic?

At Last a 25-Knot Liner

Science Notes

Ramsay's Discovery of the Degradation of Copper to Lithium

The Story of an Ancient Mine

By Herbert W. Horwill

The 25-Knot Turbine Liner “Lusitania”

The International Kite Ascensions

By S. P. Fergusson

The Erection of the Blackwell's Island Bridge

A Revolution in Postal Car Construction

By Louis C. Kane

The Greatest of Mastodons

By Walter L. Beasley

An Electric Dining Table

Departments

  • Departments

    Correspondence

  • Recently Patented Inventions

  • Notes and Queries

  • Index of Inventions

  • New Books, Etc.

  • Patents

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