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Interesting Facts about the History and Consumption of Coal
The Twins of Chemistry--Potassium and Sodium
Practical Recipes
A New Toy for Young and Old
Obituary--Dr. Warren Rowell
The Lenox Top
Protection of Sheep from Dogs
Cunningham's Patent Mortising Auger
Pickering's Velocipede
Japan--Abstract of a Lecture by the Hon George H. Fisher
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Answers to Correspondents
Recent American and Foreign Patents
Our Subscribers
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The Scientific American--Retrospective and Prospective
Canada, Nova Scotia, and New Brunswick
A New Mechanical Toy
Carbonic Acid in Water
A Significant Fact
Destruction of Fort Lafayette by Fire
Poor Mechanical Work on Agricultural Machinery
Reminiscences of Travel in Spain
The Engines of the Wampanoag
The Indians--General Sherman's Official Report
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