Improved Windmill and Motive Power - p385

doi:10.1038/scientificamerican12211861-385

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Notes on Military and Naval Affairs - p386

doi:10.1038/scientificamerican12211861-386

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Report on Iron-Clad War Vessels - p387

doi:10.1038/scientificamerican12211861-387

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Report of the Secretary of the Treasury - p387

doi:10.1038/scientificamerican12211861-387a

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The Geological History of North America - p388

Stevens

doi:10.1038/scientificamerican12211861-388

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Scissor Nippers - p388

doi:10.1038/scientificamerican12211861-388a

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Hardening and Tempering Tools and Metals - p388

doi:10.1038/scientificamerican12211861-388b

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Chemistry of Iron - p388

doi:10.1038/scientificamerican12211861-388c

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To our Friends - p393

doi:10.1038/scientificamerican12211861-393

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Iron War Vessels - p393

doi:10.1038/scientificamerican12211861-393a

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Franklinite - p393

doi:10.1038/scientificamerican12211861-393b

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Giffard's Injector for Elevating Water - p393

doi:10.1038/scientificamerican12211861-393c

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Why Will not Wet Wood Burn? - pp393 - 394

doi:10.1038/scientificamerican12211861-393d

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Reforms of the British Colonial Patent System - p394

doi:10.1038/scientificamerican12211861-394

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Notes of Shipbuilding and the Construction of Machinery in New York and Vicinity - p395

doi:10.1038/scientificamerican12211861-395

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An Ingenious Attempt to Reduce Damages - p396

doi:10.1038/scientificamerican12211861-396

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Recent American Inventions - pp396 - 397

doi:10.1038/scientificamerican12211861-396a

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Patent Claims - pp397 - 398

doi:10.1038/scientificamerican12211861-397

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The Armies of Europe, By Gen McClellan - p400

doi:10.1038/scientificamerican12211861-400

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