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Features

The Bell Telephone Case

Improve the Channelways

Night Sky.--December and January - 1885/1886

By Richard A. Proctor

A Separator to Remove Impurities from Wheat

Farm Fence Post

Improved Square

Automatic Discharger for Evaporating Pans

Fire Escape Ladder

Improved Motor

The Jarman Ice Machine

Improved Grinding Mill

Hydraulic Machinery for Operating a Drawbridge

Vertical Flour Mill Engines

Electricity at the Salpetriere

Engineering Inventions - January 2, 1886

Agricultural Inventions - January 2, 1886

Miscellaneous Inventions - January 2, 1886

Departments

  • Letters

    Correspondence - January 2, 1886

  • Recommended

    New Books and Publications - January 2, 1886

  • Departments

    Notes and Queries - January 2, 1886

  • Business and Personal - January 2, 1886

  • Index of Inventions - January 2, 1886

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January 02, 1886

Beyond XX and XY

Biology. Identity. Equality.