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The New French Armored War Ship Hoche

Seaport Defenses

A Metallic Joint or Coupling for Wheels and Other Uses

Improved Thill Coupling

An Improved Can Opener

A Ceiling Center-Piece and Ventilator

An Improved Wire or Cable Tightener

Improved Steam Food Cooker

A Proposed Plan for Non-Sinkable Ships

An Improved Railroad Track

An Improved Vehicle Top Support

Ornamental Electroliers

The Early Mission Establishments in California

A Gas Well Blow-Out at Pulaski, N. Y.

Photographic Notes- August 23, 1890

Handling Fish to Make Fertilizers

To Business Men

Architectural Books

Foreign Patents Their Cost Reduced

Now Ready

By Geo. M. Hopkins

The Scientific American Publications for 1890

The Scientific American Supplement- August 23, 1890

Building Edition- August 23, 1890

The Scientific American Established 1846


  • Letters

    Correspondence- August 23, 1890

  • Recommended

    New Books and Publications- August 23, 1890

  • Departments

    Business and Personal- August 23, 1890

  • Recently Patented Inventions- August 23, 1890

  • Notes and Queries- August 23, 1890

  • Index of Inventions- August 23, 1890

  • To Inventors- August 23, 1890

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