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Improved Machine for Stretching and Winding Woolen Cloth and More

Thomas' Patent Belt Coupling

Editorial Correspondence

Science Familiarly Illustrated

Steam Boilers--Their Construction and Use

How a Snow Flake is Built

Dissolving Aniline Colors

Recent American and Foreign Patents

Manufacturing, Mining, and Railroad Items

Editorial Summary

Answers to Correspondents

New Publications

Business and Personal

Getty's Patent Pipe Cutter

Meeker's Combined Claw Hammer and Screw Wrench

Improved Oiler for Shaft Journals, Crank Pins, Etc

Report on Life-Saving Inventions

Useless Speculations

The Value of Skilled Labor

Technical Education

Shafting and Belts--Absorption and Transmission of Power

Amended Tax Bill

Patents and Claims

Issued by the United States Patent Office

Painting and Preserving Iron Work

Extension Notices


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April 18, 1868