Skip to main content

Features

Improved Methods of Building

International Congress of Geologists

Steamship Improvements

A Measuring and Drawing Implement

Electrical Pump

Improved Slide and Screw-Cutting Lathe

A Bedclothes Fastener

A Device for Tapping Barrels

The Rolling Wheel

A Hydrocarbon Burner for Stoves, Etc.

The System of Military Dovecotes in Europe

Pneumatic Signaling Upon the Central Railroad of New Jersey

Residence on Riverside Park, New York

Departments

  • Letters

    Correspondence- July 11, 1891

  • Recommended

    New Books and Publications- July 11, 1891

  • Departments

    Business and Personal- July 11, 1891

  • Recently Patented Inventions- July 11, 1891

  • Notes and Queries- July 11, 1891

  • Index of Inventions- July 11, 1891

  • To Inventors- July 11, 1891

  • Patents- July 11, 1891

Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format
July 11, 1891

See the World from a Different Perspective

Subscribe to Scientific American MIND