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Seabury Breech Mechanism for Rapid Firing and other Guns

America's Testimonial to France

Profits of the Paris Exposition

A Slag Escape for Tuyeres

An Improved Knife Grinding Machine

An Improved Car Coupling

An Improved Padlock

An Improved Blanket Harness

A Lesson in Repousse

A Modern Stage Trick

A Venomous Ceylon Serpent

Scientific American Building Edition

Index of Inventions- May 24, 1890

To Inventors- May 24, 1890

The Scientific American Publications for 1890

Experimental Science

By Geo M Hopkins


  • Letters

    Correspondence- May 24, 1890

  • Recommended

    Electrical Books Recently Published

  • Departments

    Recently Patented Inventions- May 24, 1890

  • Business and Personal- May 24, 1890

  • Notes and Queries- May 24, 1890

  • Patents - May 24, 1890

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May 24, 1890

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