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Seabury Breech Mechanism for Rapid Firing and other Guns

America's Testimonial to France

Profits of the Paris Exposition

An Improved Blanket Harness

An Improved Car Coupling

An Improved Knife Grinding Machine

A Slag Escape for Tuyeres

An Improved Padlock

A Lesson in Repousse

A Venomous Ceylon Serpent

A Modern Stage Trick

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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