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Scientific American Magazine Vol 76 Issue 14

Scientific American Magazine

Volume 76, Issue 14

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Features

The Underground Trolley in New York City

Section Seven of the Amendments to the Patent Statutes

The "Rotary" Steam Engine

R. H. Thurston

Diphtheria in Cold and Hot Countries

A New Automatic Screw Cutting Die Head

An Improved Boiler

The Manufacture of Ready Mixed Paints

Scenes on the Columbia River, Oregon

The Bertillon System of Identification by Measurement

The Glaciers of Greenland

Ralph S. Tarr

A New Fast Job Printing Press

Batchelor's Ripping Attachment for Sewing Machines

A Fire Escape and Water Tower

To Inventors - April 3, 1897

Departments

Recently Patented Inventions - April 3, 1897

New Books, Etc - April 3, 1897

Business and Personal - April 3, 1897

Notes and Queries - April 3, 1897

Index of Inventions - April 3, 1897