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Features

Innocent Purchasers in the Senate

Markings on the Planet Mars

American Crocodiles

New Fertilizer Distributer

Novel Boot Supporter

Improved Gate

Gas Exhauster

Decisions Relating to Patents

Moore County Grit Mill Stones

The Eclipse as Seen on the Nile

Progress of the Hudson River Tunnel

Drawing Board Paper Holder

Agricultural Inventions - July 15, 1882

Engineering Invention - July 15, 1882

Miscellaneous Inventions - July 15, 1882

Electrical Invention - July 15, 1882

Engineering Inventions - July 15, 1882

Mechanical Inventions - July 15, 1882

Departments

  • Departments

    Index of Inventions - July 15, 1882

  • New Books and Publications - July 15, 1882

  • Notes and Queries - July 15, 1882

  • Business and Personal - July 15, 1882

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July 15, 1882

Beyond XX and XY

Biology. Identity. Equality.

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