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Tornadoes, Hailstorms, and Waterspouts

Heat, Light, and Power without Cost

The Keely Motor Deception

Another New Motor

The Gamgee Perpetual Motion

Improved Post Hole Digger

Dose-Measuring Bottle

Improved Door Fastener

American Industries.No. 73 - (American Industries.--No. 73)

Araometric Method for the Estimation of Fat in Milk

New Road Car

New Hot-Air Bath Chamber

Krugg Jugs

The Alligator Snapping Turtle

Miscellaneous Inventions - May 14, 1881

The Electric Light in an Art Gallery

Botanical Notes


  • Departments

    Correspondence - May 14, 1881

  • New Inventions - May 14, 1881

  • Recent Inventions - May 14, 1881

  • Notes and Queries - May 14, 1881

  • Business and Personal - May 14, 1881

  • Index of Inventions - May 14, 1881

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