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Features

Shipwrecks on the British Coasts

The Rabbit Plague in Australia.--A Big Chance for a Paying Invention

Transits of Venus

Aspects of the Planets for December

Improved Straw Cutter

Electrical Apparatus for Stopping Steam Engines

Improved Railway Car

Multiple-Spindle Slot Drill

The National Academy of Sciences

Novelties at the New England Institute Fair

Self-Registering Ship's Compass

Diaphragm Pump

Jablochkoff's New Electric Motor, the “Ecliptic.&rdquo:

The Sea Cucumber's Tenant

Improved Can Opener

Engineering Inventions

Mechanical Inventions

Agricultural Inventions

Miscellaneous Inventions

Departments

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    Recent Inventions

  • Index of Inventions

  • Notes and Queries

  • Business and Personal

  • New Books and Publications

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November 25, 1882

Beyond XX and XY

Biology. Identity. Equality.