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The Celebration in Honor of Emperor William the Great

The Pope's Army

Pipe Line System of Drawing Water for Fire Service

The Development of the Rudder Motor

The Capsizing of a Ship

The Evolution of the American Locomotive

By Herbert T. Walker

The Reno Rapid Transit Plan for Broadway, New York

By J. W. Reno

Crushing, Grinding and Separating Machinery

Vulcanite Graphite Bearings

The Midget Steam Trap

The Filtz Rotary Steam Motor

Deliberate Deception in Ancient Buildings

Selected Formulæ

Roman Theaters

Electrical Notes

Miscellaneous Notes

Engineering Notes

The Electric Heater

By H. E. Stauffer

Apparatus for Registering the Outgoing and Incoming of Carrier Pigeons

The Commencement of Submarine Telegraphy

By J. H. Jackson

The Future of American Industries

By A. E. Outerbridge

A Fireproof Tree

By G. Clarke Nuttall

The Perception of Sound


Role of the Nerves in the Mind Cure


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    April 24, 1897

    20% Sitewide for President's Day