Improved Steam Street Cars

Our Five Hundred Thousand Dollar Commissioner to Vienna

A Remarkable Test Plate

Italian Industrial Progress

The Fair of the American Institute

Astronomical Notes

Scientific and Practical Information

Steam Traction

Remarkable Magnetic Storms and Auroras in Europe

New Plan for a Local Fire Department

Scientific and Mechanical Possibilities

Lathe Center Grinder

Improved Steam Engine

Transmission of Motion

Inventions and Suggestions for the Prevention of Fires

The Consciousness of Dogs

How Money is Made

Decisions by the Commissioner of Patents

Decisions of the Courts

Answers to Correspondents

Recent American and Foreign Patents

Value of Patents, and How to Obtain them

Practical Hints to Mentors

Patent Cold Rolled Shafting