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Peary's Arctic Discoveries

"Columbia" and "Shamrock"

New York-Buffalo Endurance Race

The M. Santos-Dumont Balloon No. 6 Fails

Science Notes

An Electrical Water-Heater

An Improved Fertilizer-Distributer

Harbor Improvement, Oakland, Cal

A Locomotive Curiosity

Curious Locomotive Explosion

Rolling Lift Bridges

By Waldon Fawcett

Foster's Fog Signals

Foolhardy Attempts at Passing the Whirlpool Rapids of Niagara

By Orrin E. Dunlap

A Destructive Bolt of Lightning

A New Motor Cycle

Business and Personal Wants

To Inventors


  • Departments

    The Heavens in October

  • Correspondence - September 28, 1901

  • Recently Patented Inventions - September 28, 1901

  • Notes and Queries - September 28, 1901

  • Index of Inventions - September 28, 1901

  • Patents - September 28, 1901

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September 28, 1901

Beyond XX and XY

Beyond XX and XY

Biology. Identity. Equality.