Combined Power-Lifting and Forcing Pumps

The Ellershausen Process of Manufacturing Iron

Inventor of Stereotyping—William Ged

How Common Window Glass is Made

Lecture on the Spectroscope

The Therapeutics of Wakefulness

Modern Wrenches and Their Antecedents

Bicknell's Patent American Window Weight Pulley

Velocipede Notes

How Contracts are Awarded—Gross Frauds in the Patent Office

Chemical Invention

How Workingmen May Obtain Facilities for Intellectual Improvement

Cheese and Nuts

Transfusion of Blood

Modern Musical Instruments

“Waste” and “Economy” of Fuel

Editorial Summary

New Publications

Recent American and Foreign Patents

Steam Pump Valves

Important Decision under the Patent Laws

Answers to Correspondents

Manufacturing, Mining, and Railroad Items

Official List of Patents

European Patents

Patent Offices