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Professor Max Muller

Samuel Alfred Varley

Electrolytic Production of Bleaching Agents

The New York and New Jersey Bridge-Route, Union Station and Terminals

The Works of the Schulz-Knaudt Company, Limited

History of Artificial Illumination

Gas Lighting at the Paris Exposition

Hydraulic Clock

Toy Parachutes

Pneumatic Leaf Turner


Our Sense of Color

By William Rutherford

The New Concentric Lens

The Dahomey Expedition

Boiler Feed Waters and Incrustation

Useful Engineering Books


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October 22, 1892

20% Sitewide for President's Day