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Improved Cut-Off in Engines

Truman's Patent Cotton Bale Tie

Recent American and Foreign Patents

Manufacturing, Mining, and Railroad Items

Editorial Summary

Answers to Correspondents

New Publications

Extension Notices

Southgate's Improved Key

Plaster of Paris–Gypsum

One Cause of Boiler Explosion

Fair of the America Institute

Rising of Water by Creating a Vacuum

Isherwood's Cog-Wheel Propeller Engine--An Interesting Comparison

Official Report of Patents and Claims

Issued by the United States Patent Office

Pending Applications for Reissues


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October 26, 1867

20% Sitewide for President's Day