Table of contents

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April 3, 1875, Volume 32 No 14 pp207-221

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Departments

Correspondence

Correspondence pp212 - 213

doi:10.1038/scientificamerican04031875-212

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Business and Personal

Business and Personal p218

doi:10.1038/scientificamerican04031875-218

PDF (317 KB)

Notes and Queries

Notes and Queries pp218 - 220

doi:10.1038/scientificamerican04031875-218a

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Index

Index of Inventions p220

doi:10.1038/scientificamerican04031875-220a

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Articles

The Saxby and Farmer Safety Switches and Signals pp207 - 208

doi:10.1038/scientificamerican04031875-207

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Science in Common Schooling p208

doi:10.1038/scientificamerican04031875-208

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Syrian Sponges pp208 - 209

doi:10.1038/scientificamerican04031875-208a

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Inspection of Boilers p209

doi:10.1038/scientificamerican04031875-209

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Michigan's Salt Interests p209

doi:10.1038/scientificamerican04031875-209a

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The Mission of the Fly p209

doi:10.1038/scientificamerican04031875-209b

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The Hudson River Tunnel at New York p211

doi:10.1038/scientificamerican04031875-211

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Scientific and Practical Information p213

doi:10.1038/scientificamerican04031875-213

PDF (186 KB)

Improved Water Injectors pp214 - 215

doi:10.1038/scientificamerican04031875-214

PDF (744 KB)

Red Deer pp215 - 216

doi:10.1038/scientificamerican04031875-215

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Recent American and Foreign Patents pp216 - 218

doi:10.1038/scientificamerican04031875-216

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Communications Received p220

doi:10.1038/scientificamerican04031875-220

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Canadian Patents p221

doi:10.1038/scientificamerican04031875-221

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