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The Telephone Central Office System of Paris

Aerial Navigation

The Revival of Cherry

Effect of Alcohol upon Digestion

China as a Market


Combined Tag and Envelope

The Detection of Gas Leakages

New Nut Lock

The Brush Electric Light Works, Rochester, N. Y

Tunnel Boring Machine

Great Loss in the Diamond Fields

Agricultural Inventions

Miscellaneous Inventions

Mechanical Inventions

Engineering Inventions


  • Departments


  • Business and Personal

  • Index of Inventions

  • New Books and Publications

  • Notes and Queries

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August 11, 1883

Confronting Common Wisdom