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The Barney Automatic Dumping Boat

Three Wheeled Inspection Car

Making Wind Power Auxiliary

A Convention of Inventors

The Oil Stone

Aspects of the Planets for November

Plow Gauge

Sheep Gate


Balanced Slide Valve

Coasting Without Snow

An Australian Steam Ferry Boat


Artesian Wells, Australia

The Bottle-Nosed Whale

Combination Tool

Calipers and Dividers

Mechanical Intentions

Engineering Inventions

Miscellaneous Inventions

Agricultural Inventions


  • Departments


  • Business and Personal

  • New Books and Publications

  • Index of Inventions

  • Notes and Queries

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