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Improved Portable Stump Extractor, The Chicago River Tunnel

Woodside's Patent Self-Setting Animal Trap

Manufacture of Cast Steel and Homonogeneous Iron

Modern Penmanship

Special Correspondence of the Scientific American-Affairs at the Patent Office

Telegraphing without Wires

The Bessemer Process How its Early Difficulties Were Overcome

Burying Alive-Experiments with Vester's Patent Burial Case

Recent American and Foreign Patents

Manufacturing, Mining, and Railroad Items

Answers to Correspondents

New Publications

A Blind Inventor

Stimson's Patent Butt Hinge Door Spring

Patent Torch for Lamp-Lighting


The Progress of Chemical Science

Small Potatoes

Nitrous Oxide as an Anesthetic

Improvement in Water Wheels

Official Report of Patent and Claims


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September 16, 1868

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