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Scientific American Magazine Vol 77 Issue 8

Scientific American Magazine

Volume 77, Issue 8

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Features

The Book Carriers of the New Library of Congress Building

E. J. Prindle

The Proposed Rapid Transit Tunnel, New York City

Prosperity

Extension of Our South American Trade

Deceptive Methods of Patent Attorneys

Official Registration of Patent Attorneys

A Successful Solution of the Locomotive Counterbalance Problem

Railway Mail Catcher and Delivery Devices

Air Brake Instruction Car on the "Big Four Route"

The Seagoing Ferry "Pere Marquette"

A Nail Holding Device for Hammers

Black Art

William B. Caulk

To Inventors - August 21, 1897

Departments

Recently Patented Inventions - August 21, 1897

New Books, Etc - August 21, 1897

Business and Personal - August 21, 1897

Notes and Queries - August 21, 1897

Index of Inventions - August 21, 1897

Patents - August 21, 1897