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Protection against Fire Damp

Mechanical Stokers on Locomotives

Seawanhaka Cup Returns to America

Wear of Car Wheels on Curves

The Lesson of the "Bennington" Disaster

Yellow Fever Prevented by Mosquito Extermination

How the Ancient Babylonians Drained Their City

By Edgar James Banks

Ice-Making by Electricity

By Orrin E. Dunlap

The Improvement of the Ohio Canals

By W. Frank Mc Clure

Hollow Concrete Building Blocks: Their Manufacture and Use

By L. B. Powell

Electric Tempering of Tools

The Life History of a Coral

The New Japanese Battleships

The Future University of California

By Enos Brown

Canals of Mars Photographed

The Pygmies of the Congo

America's First Long-Distance Motor-Boat Race


  • Departments

    Correspondence - August 5, 1905

  • Recently Patented Inventions - August 5, 1905

  • Business and Personal Wants

  • Notes and Queries - August 5, 1905

  • Index of Inventions - August 5, 1905

  • New Books, Etc. - August 5, 1905

  • Patents - August 5, 1905

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