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Features

The Ohio Pump

Scientific Memoranda

Galvanic Slug and Snail Shocker

Our Industrial Establishments

Physical Education

Maple Sugar

The Culture of Tobacco

Iron-Clad Ships Against Forts and Heavy Ordnance

The Boiling of Water and Steam-Boiler Explosions

Tapping Holes

Causes of the Phenomena in Organic Nature--The Origin of Species

Valuable Receipts

Geology and the “King Crab”

Patent Claims

Issued from the United States Patent Office

To Our Readers

Secondary Government Fees on Patents

Recent American Patents

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May 02, 1863

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