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Scientific American Magazine Vol 84 Issue 10

Scientific American Magazine

Volume 84, Issue 10

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Features

An Important Telephone Patent Decision

The New Star in Perseus

The Slaby System of Wireless Duplex Telegraphy

A New Permanent Phonograph Record

The Pollok Memorial Prize

A Triumph of Ingenuity and a Patent with a History

San Gimignano and Its Towers

An Improved Gasoline Automobile

Trees and Plants of Southern California

Charles F. Holder

The Paige Typesetting Machine

The Slaby System of Wave-Selective Wireless Duplex Telegraphy

Automatic Ore Unloader

W. Frank M'Clure

A New Book or Copy Holder for Typewriters

A Valve Motion for Small High-Pressure Pumps

A Pail for Live Bait

Departments

Recently Patented Inventions - March 9, 1901

Notes and Queries - March 9, 1901

Business and Personal Wants - March 3, 1901

Index of Inventions - March 9, 1901