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Aniline--Its History, Properties, and Preparation

Liquid Measuring Apparatus

Early History of an Inventor

Metric System

The Permeation of Organic and Other Fluids

Lenhart's Spring Fish-Hook

Science Familiarly Illustrated

Manufacturing, Mining, and Railroad Items

Recent American and Foreign Patents

Answers to Correspondents

Extension Notices

Wickersham's American Oil Feeder

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

Peculiarities of Machines--Their Individuality

Improved Condition of the Patent Office

Official Report of Patents and Claim

Pending Applications for Reissues


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November 23, 1867

20% Sitewide for President's Day