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Features

Psychology of Invention

The Earth and the Inner Moon of Mars

Unscientific and Scientific Divining Rods

By M. Hopkins

The Steel Steamer Choctaw

An Improved Fire Engine Pump

The Moon and Mars

The Looped Path of Mars

The Homestead Difficulties

A Deep Basement

Departments

  • Recommended

    New Books and Publications- August 20, 1892

  • Departments

    To Inventors- August 20, 1892

  • Index of Inventions- August 20, 1892

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August 20, 1892

Think Outside the Gift Box