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Features

The Horseless Carriage and Public Health

The Panama and Nicaragua Canals--A Comparison

Testing of Children's Strength

Fiber Plants from Our New Possessions

Great Activity in the Steel Trade

Pullman

Great Steel and Wire Combination

A New Non-Refillable Bottle

A Portable Horse Stall for Railway Cars

An Ingenious Brake and Motor-Controller for Electric Cars

Automobiles at the Late Cycle Exhibition

The Proposed Nicaragua Canal

Repairing the Keel of a Battleship

Departments

  • Letters

    Correspondence - February 18, 1899

  • Recommended

    New Books, Etc - February 18, 1899

  • Departments

    Recently Patented Inventions - February 18, 1899

  • Index of Inventions - February 18, 1899

  • Business and Personal - February 18, 1899

  • Notes and Queries - February 18, 1899

  • Patents - February 18, 1899

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February 18, 1899

Beyond XX and XY

Biology. Identity. Equality.

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