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Features

A New Submarine Boat

A Fiber from Cotton Stalks

The Copyright Bill Fails To Pass

An Improved Ventilator for Railway Cars

An Anvil Attachment

An Improved Pipe Clamp

An Improved Adjustable Ladder

An Improved Clothes Line Adjuster

An Improved Curtain Pole Fixture

An Improved Wire Stretcher

A Water Shield for Window Brushes

An Improved Ledger Index

The Accident to the Steamer City of Paris

An Improved Furnace Door Opener

An Improved Valve

Etching

A Gigantic Plant from Sumatra

A New Gun for Firing High Explosives

A New Target Pistol

To Inventors- May 17, 1890

Electrical Books

The Scientific American

Departments

  • Letters

    Correspondence- May 17, 1890

  • Departments

    Notes and Queries- May 17, 1890

  • Business and Personal- May 17, 1890

  • Recently Patented Inventions- May 17, 1890

  • Index of Inventions- May 17, 1890

  • Patents! May 17, 1890

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May 17, 1890

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