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Improved Street-Sweeping Machine, Snow Skates in California, and more

Another Improvement in Photography the Simpsontype

Professor Silliman on Petroleum in California

New System of Regulating Railway Trains

Recent American Patents

Paris International Exhibition of 1867

The Folly of Strikes

Safety Matches

Peat

Naval Discipline

Coal

Special Notices

Patent Claims

The Way to Lay Out an Orchard

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Rates of Advertising

Notice to Subscribers

To Inventors, Mechanics, Agriculturalists. The Annual Prospectus, of the Scientific American

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April 29, 1865

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