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Features

At Last a 25-Knot Liner

Is Rusting Electrolytic?

Colorado Dam is Permanent

Cause and Cure of Split Rail Heads

Ramsay's Discovery of the Degradation of Copper to Lithium

Science Notes

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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August 10, 1907

Reanimate Your Brain

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