Table of contents


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Departments

Correspondence

Correspondence p196

doi:10.1038/scientificamerican09241892-196


Recently Patented Inventions

Recently Patented Inventions p202

doi:10.1038/scientificamerican09241892-202


Business and Personal

Business and Personal p203

doi:10.1038/scientificamerican09241892-203


Notes and Queries

Notes and Queries p203

doi:10.1038/scientificamerican09241892-203a


Index

Index of Inventions pp203 - 204

doi:10.1038/scientificamerican09241892-203c


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Articles

Advance of Polar Exploration pp192 - 193

doi:10.1038/scientificamerican09241892-192


Art and Photography p194

doi:10.1038/scientificamerican09241892-194


Carr's Improved Combination Surface Gauge p194

doi:10.1038/scientificamerican09241892-194a


How Horse Trotting Improves p195

doi:10.1038/scientificamerican09241892-195


An Improved Brick Machine p195

doi:10.1038/scientificamerican09241892-195a


A Watchman's Electric Time Recorder p195

doi:10.1038/scientificamerican09241892-195b


The Austin, Texas, Dam p197

doi:10.1038/scientificamerican09241892-197


Lightning Full Mounted Screw Plates p197

doi:10.1038/scientificamerican09241892-197a


Improved Reaping, Thrashing, and Bagging Machine p198

doi:10.1038/scientificamerican09241892-198


The Study of the Stars pp199 - 200

A. E. Beach

doi:10.1038/scientificamerican09241892-199


A Field Glass Camera pp201 - 202

doi:10.1038/scientificamerican09241892-201


Communications Received p203

doi:10.1038/scientificamerican09241892-203b


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