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Features

The New York Cable Railway

Steam Heat for Melting Snow in Streets

The Interior Department Favors a Suit against the Bell Telephone Patent

Sibley College Lectures, Cornell University

Photographic Notes - January 30, 1886

The Micro-Audiphone

Apparatus For Making Illuminating Gas

Feeding Coal to Furnaces

Combined Milling and Slotting Machine

Making Steam by Friction

Feathered Butchers

The Termes Flavipes

Whittled Fans

Miscellaneous Inventions - January 30, 1886

Engineering Inventions - January 30, 1886

Agricultural Inventions - January 30, 1886

Departments

  • Letters

    Correspondence - January 30, 1886

  • Recommended

    New Books and Publications - January 30, 1886

  • Departments

    Notes and Queries - January 30, 1886

  • Business and Personal - January 30, 1886

  • Index of Inventions - January 30, 1886

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January 30, 1886

Beyond XX and XY

Biology. Identity. Equality.

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