Features
Amateur Naval Operations
Notes from the Worlds Columbian Exposition Chicago 1893
Boring Machine for Corliss Engine Cylinders
The “Paragon” Speed Indicator
An Improved Electric Motor Truck
Mechanical Arithmetic
A Heater and Condenser
Optical Goods at the Exposition
Russian Exhibits
Improved Construction of Floors, Ceilings, Arches, Etc
Western Electric Company's Luminous Sign
American Historical Exposition in Madrid
A Geometrical Educational Appliance
To Inventors
Departments
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Correspondence
Recently Patented Inventions
New Books and Publications
Index of Inventions
Business and Personal
Notes and Queries
