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Features

A Thirty-Five Foot Channel for New York Harbor

Enlarging the Capacity of the Brooklyn Bridge

American Locomotives for an English Railway

The Forests of the World

The Gatling Cast Steel Gun

Preserve Your Papers

The Heavens in January 1899

By Garrett P. Serviss

An Arctic Railroad

By J. H. Gore

Calcium Carbide in New York City

How to Make Paper Friction Wheels

By B. F. Fells

A Locomotive with Oscillating Cylinders

A Novel Cushion Tire

Comparative Strength of the World's Navies

The Danilewsky Dirigible Flying Machine

Scientific Kite Flying

Mimicry in the Eggs of Fishes

By Charles F. Holder

Departments

  • Recommended

    New Books, Etc. - December 31, 1898

  • Departments

    Recently Patented Inventions - December 31, 1898

  • Index of Inventions - December 31, 1898

  • Business and Personal - December 31, 1898

  • Notes and Queries - December 31, 1898

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December 31, 1898

Beyond XX and XY

Biology. Identity. Equality.