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A Plea for the Merchant Fleet

Shortening the Ocean Trip Half a Day

Saccharin, the Sweetest of Sweets

Photographic Notes- December 7, 1893

An Improved Brick Mould

An Improved Portable Dam

An Improved Lathe Attachment

An Improved Gate Hinge

New Spanish Guns

The Boston Maritime Exhibition

A Mammoth Cactus

Molecular Actions

The Moving Stone of Buenos Ayres


  • Letters

    Correspondence- December 7, 1893

  • Recommended

    New Books and Publications- December 7, 1893

  • Departments

    Recently Patented Inventions- December 7, 1893

  • Business and Personal- December 7, 1893

  • Notes and Queries- December 7, 1893

  • Index of Inventions- December 7, 1893

  • To Inventors- December 7, 1893

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December 07, 1889

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