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Features

Krupp's New Cannon for the Paris Exhibition

Improved Adjustable Mitering Apparatus

The Paris Exposition

Progress of the Commission of Life-Saving Inventions

Lubricating Petroleum as a Siccative Oil

“Wirbel-Bewegung”

Uprights on a Plane and on a Curve

Hub-Boring Machine

Butterworth's Improved Window Spring

Powell's Sleeve Supporter

Recent American and Foreign Patents

New Publications

Answers to Correspondents

Caution

The Public Railway System

Lightning Conductors

Naphthalizing Gas

Great Inventors--Their Suffering and Success

Off to Europe

The Broadway Bridge

Science Familiarly Illustrated

Patent Claims

Issued from the U. S. Patent Office

The Pacific Railroad--Its Several Grand Divisions

How to Obtain Patents

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The Essential Guide to the Modern World

The Essential Guide to the Modern World