Scientific American Magazine
Volume 61, Issue 15You are currently logged out. Please sign in to download the issue PDF.
Features
The Halpin-Savage Torpedo
Meeting of the National Telephone Association
1,492 Feet for the Height of the American Tower
The International Congress of American States
An Improved Blast Heater
An Improved Replacing Frog
An Attachment for Scissors
An Improved Swinging Window Sash
An Improved Sketching Tripod, or Delineator
An "Otto" Gas Engine of One-Third Horse Power
Jacob's Ladder
Thomas Alva Edison
Arrangement of Battery Cells
To Inventors- October 12, 1889
Departments
Correspondence- October 12, 1889
Recently Patented Inventions- October 12, 1889
Notes and Queries- October 12, 1889
Business and Personal- October 12, 1889
New Books and Publications- October 12, 1889
Index of Inventions- October 12, 1889
