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Features

Cutting Sugar Cane-Bagasse Furnaces

Nutritive Qualities of the Onion

Tomatoes

Salmon Cultivation

Utilizing Steel Grindings

Micro-Photography

The Coal Trade of the United States

Improved Lounge and Chair

Artificial Wood

Iron Gunpowder

Williams' Improved Plow

Benefit of Steam Jackets

Honors to Josiah Wedgewood

Death of Professor Olmsted

Schaefer's Pump

Charles M. Keller and the American Patent Office

Under Brain-Work

American Steamboats in Scotland

Inquiry About Gunpowder

Gutta-Percha for Submarine Cables

Tempering Steel Tools

Hobbs' London Lock Factory

The New Commissioner of Patents

Improvements in Fire-Arms

Enlargement of the “Scientific American”

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    Notes and Queries

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Why Do Facts Fail?

Why Do Facts Fail?

Deconstructing Denial