Scientific American Magazine
Volume 60, Issue 13You are currently logged out. Please sign in to download the issue PDF.
Features
The Metropolitan Telephone Co.'s New Central Station and Great Switchboard
Wanted-a First Class Gun
Position of the Planets in April 1889
War Material of American Designing
Improved Handle for Sliding Doors
An Improved Buckboard
An Improved Knife Cleaner
An Improved Brake Block
A Novel Nut Lock
Improved Hood for Stoves or Ranges
An Insulator for Electrical Conductors
Improved Device for Detaching Animals
An Improved Rotary Harrow
An Improved Plant Nest
An Improved Photograph Printing Frame
Armstrong's Envelope Cutter
The New Spanish Ship of War Pelayo
Improved Calipers and Dividers
An Improved Watering Trough
Photographic Notes- March 30, 1889
Departments
Correspondence - March 30, 1889
Notes and Queries- March 30, 1889
Business and Personal- March 30, 1889
Recently Patented Inventions- March 30, 1889
To Inventors- March 30, 1889
Index of Inventions- March 30, 1889
