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Scientific American Magazine Vol 49 Issue 24

Scientific American Magazine

Volume 49, Issue 24

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Features

The Equatorial of the Paris Observatory

The Edison Electric Light Co

The Life of Stones

Injury by Heat

Argols

The Cholera in Egypt

Spark Arrester

Machine for Trimming Paper on Four Sides

Plow

Harrow

Fire Escape

Simple Garden Improvement for Promoting Winter Growth

Engraved Eggs

A Massive Scaffolding

The Giant Heron

Belt Holder

Gold Separator

Agricultural Inventions

Engineering Inventions

Miscellaneous Inventions

Mechanical Intentions

Departments

Correspondence

Business and Personal

Index of Inventions

Notes and Queries