Skip to main content

Features

Improved Paging Machine

Romance of the Steam Engine

Ships' Compasses—Dangerous Attraction—Engines and Iron Hulls

Flax and Cotton

The Polytechnic Association of the American Institute

Patent Claims - April 20, 1861

Issued from the United States Patent Office

Departments

  • Letters

    Our Editorial Correspondence - April 20, 1861

  • Departments

    Notes and Queries - April 20, 1861

Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format
April 20, 1861

See the World from a Different Perspective

Subscribe to Scientific American MIND