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Charitable Colonizing

Value of Observation in Invention

Speculative Mining

Waiting for Something to Turn up

Facade of the Danish Section at the Paris Exhibition

American Plows in France

The American Association at St. Louis

Paris Exhibition of 1878

A New Sheep Protector

Elwell's Middlings Separator

The Tailor Bird

The American Arctic Expedition

New Coffee Pot

A Novel Railway Car Window

Lescale's Automatic Fire Escape

The Micro-Telephone

By Geo. M. Hopking

Astronomical Notes

By Berlin H. Wright


  • Departments

    Notes and Queries

  • Index of Inventions

  • Business and Personal

  • New Books and Publications

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