Scientific American Magazine
Volume 69, Issue 20You are currently logged out. Please sign in to download the issue PDF.
Features
The Otto Gas Engines at the Columbian Exposition
Amateur Naval Operations
Notes from the Worlds Columbian Exposition Chicago 1893
The “Paragon” Speed Indicator
Boring Machine for Corliss Engine Cylinders
Mechanical Arithmetic
A Heater and Condenser
An Improved Electric Motor Truck
Optical Goods at the Exposition
Russian Exhibits
Western Electric Company's Luminous Sign
Improved Construction of Floors, Ceilings, Arches, Etc
American Historical Exposition in Madrid
A Geometrical Educational Appliance
To Inventors
Departments
Correspondence
New Books and Publications
Recently Patented Inventions
Notes and Queries
Business and Personal
Index of Inventions
