Scientific American Magazine
Volume 90, Issue 19You are currently logged out. Please sign in to download the issue PDF.
Features
Battleship or Torpedo Boat
Some Interesting Facts about the Development of the Edison Storage Battery
Commemoration of the Louisiana Purchase
The Current Supplement
Action of Radium on Metals
The Russian Ice-Breaker "Ermack"
Experiments with Three-Phase Electric Arcs
High-Velocity 6-Inch Wire-Wound Gun for the United States Army
Growth of Our Navy
The Louisiana Purchase Exposition--Its Scope and its Purpose
The Largest Clock in the World
A New Electric Clock
The Hydraulic Letter Press
Patent Department
Strainer for Locomotives
A Novel Mail-Bag Catcher
A New Wrench
A Combined Third-Rail Contact Shoe and Sleet Remover
Business and Personal Wants
Departments
The Heavens in May - May 7, 1904
Recently Patented Inventions - May 7, 1904
Notes and Queries - May 7, 1904
New Books, Etc. - May 7, 1904
Index of Inventions - May 7, 1904
