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Features

Retrospect of the Year 1905

The Roosevelt Irrigation Dam in Arizona

Rare Shellfish

By Arthur Inkersley

A Typical American Touring Car

Natural and Artificial Flight

By E. Wilson

The Koryaks of Siberia and their Great Whale Festival

By Walter L. Beasley

The Oil Fields of the West

By Day Allen Willey

The Japanese Navy After the War

Novelties at the Parisian Toy Exposition

By The French Correspondence of the Scientific American

Business and Personal Wants

The Wealth Patents Patents of Nations

Departments

  • Departments

    Correspondence - December 16, 1905

  • Recently Patented Inventions - December 16, 1905

  • Notes and Queries - December 16, 1905

  • New Books, Etc. - December 16, 1905

  • Index of Inventions - December 16, 1905

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December 16, 1905

Beyond XX and XY

Biology. Identity. Equality.

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