The 42D Street Sewage Tunnel, New York City - pp319 - 320

doi:10.1038/scientificamerican11241877-319

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$80,000 Reward for a Cure for Cholera - p320

doi:10.1038/scientificamerican11241877-320

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Sun Spots Studied by Solar Photography - p320

doi:10.1038/scientificamerican11241877-320a

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Cerebral Thermometry - p320

doi:10.1038/scientificamerican11241877-320b

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Lessons in Mechanical Drawing - pp320 - 321

doi:10.1038/scientificamerican11241877-320c

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The Glandular Theory of Disease - p321

doi:10.1038/scientificamerican11241877-321

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Notes of Decisions of the Courts - p321

doi:10.1038/scientificamerican11241877-321a

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Improved Tile-Making Machine - p322

doi:10.1038/scientificamerican11241877-322

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M. Trouve's New Moist Battery - p323

doi:10.1038/scientificamerican11241877-323

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Harrison's New Portable Flouring Mill - p323

doi:10.1038/scientificamerican11241877-323a

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Communications - p324

doi:10.1038/scientificamerican11241877-324

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Practical Mechanism - pp325 - 326

Joshua Rose

doi:10.1038/scientificamerican11241877-325

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Improved Boring Machine - p326

doi:10.1038/scientificamerican11241877-326

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Improved Label Holder - pp326 - 327

doi:10.1038/scientificamerican11241877-326a

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The New French Exposition Palace - p327

doi:10.1038/scientificamerican11241877-327

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A Curious Result of Denudation - p327

doi:10.1038/scientificamerican11241877-327a

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Raising Obelisks - pp328 - 329

doi:10.1038/scientificamerican11241877-328

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New Arrangement of the Air Reservoirs in Pumps - pp329 - 330

doi:10.1038/scientificamerican11241877-329

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How to Adjust Engine Guide Bars - p330

doi:10.1038/scientificamerican11241877-330

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Recent American and Foreign Patents - p330

doi:10.1038/scientificamerican11241877-330b

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New Agricultural Inventions - p330

doi:10.1038/scientificamerican11241877-330c

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New Miscellaneous Inventions - p330

doi:10.1038/scientificamerican11241877-330d

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New Mechanical and Engineering Inventions - p330

doi:10.1038/scientificamerican11241877-330e

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New Household Inventions - p330

doi:10.1038/scientificamerican11241877-330f

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Wants and Business Inquiries - p332

doi:10.1038/scientificamerican11241877-332

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The Scientific American - p332

doi:10.1038/scientificamerican11241877-332b

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