Scientific American Magazine
Volume 64, Issue 25You are currently logged out. Please sign in to download the issue PDF.
Features
The Proposed New Croton Lake Dam and the New Croton Lake
The Sailing of Two Polar Expeditions
A Lock with Key Held Pendent
An Extensible Barrel Truck
An Improved Feed Rack, Barn, Etc.
Improved Wimshurst Static Electrical Machine
An Improved Car Coupling
The Artesian Well at Springfield, South Dakota
Simple Apparatus for Gathering and Examining Microscopic Objects
The St. Clair Tunnel Locomotives--The Largest Locomotive in the World
A Book Finisher's Lettering Machine
The Hitchcock Life Guard for Electric Cars
Edison's Kinetograph and Cosmical Telephone
Departments
Correspondence- June 20, 1891
Recently Patented Inventions- June 20, 1891
Business and Personal- June 20, 1891
Notes and Queries- June 20, 1891
To Inventors- June 20, 1891
Index of Inventions- June 20, 1891
