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Liquid Measuring Apparatus

Aniline--Its History, Properties, and Preparation

Early History of an Inventor

Metric System

The Permeation of Organic and Other Fluids

Lenhart's Spring Fish-Hook

Science Familiarly Illustrated

Recent American and Foreign Patents

Manufacturing, Mining, and Railroad Items

Extension Notices

Answers to Correspondents

Wickersham's American Oil Feeder

Improved Condition of the Patent Office

Peculiarities of Machines--Their Individuality

Boiler Furnace Grates--They Should be Suited to the Coal

Official Report of Patents and Claim

Pending Applications for Reissues

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November 23, 1867

Confronting Common Wisdom