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The Paris Electrical Exhibition

The Fishing Fish

Steam Versus Sails in Oyster Culture

Steam-Boiler Notes

Testing Full-Sized Bridge Columns

The American Science Association

Watertown Boiler Explosion

Improved Horse Hay-Fork

Improvement in Casting Car Wheels

Artificial Indigo in Meister, Lucius & Bruning's Exhibition of Dyestuffs

Tin-Plating Processes

Mechanical Inventions

Improved Electric Generator

Improved Freight Car

Operculums and Eyestones

By A. W. Roberts

Peculiarities of the Cephalopoda

By C. F. Holder

Miscellaneous Inventions


  • Departments


  • Business and Personal

  • Index of Inventions

  • Notes and Queries

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