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Scientific American Magazine Vol 91 Issue 2

Scientific American Magazine

Volume 91, Issue 2

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Features

Santos-Dumont and the Exposition Authorities

The Progress of Mosquito Extermination

Machine Grinding

A Vegetable Butter

Historic Forest Fires

The Preparation of Cereal Foods

The Submarine Torpedo Tube

The Gordon Bennett Cup Race

By Special Correspondent of the Scientific American

The New Nemethy Flying-Machine and the Principle of Its Construction

Alfred Gradenwitz

A Curious Formation of Horse's Skull

J. C. Wraith

Business and Personal Wants

Improved Screwdriver

Departments

Science Notes - July 9, 1904

Recently Patented Inventions - July 9, 1904

Index of Inventions - July 9, 1904

Patents - July 9, 1904