The Arthur Kill Bridge - pp399 - 400

doi:10.1038/scientificamerican06301888-399

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Naval Notes - p400

doi:10.1038/scientificamerican06301888-400

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Master Car Builders in Convention - p401

doi:10.1038/scientificamerican06301888-401

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The Mason & Hamlin Pianos and Organs - pp402 - 403

doi:10.1038/scientificamerican06301888-402

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An Improved Wheel Fender for Carriages - p403

doi:10.1038/scientificamerican06301888-403

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An Improved Railway Crossing Alarm Signal - p403

doi:10.1038/scientificamerican06301888-403a

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An Improved Folding Cot - pp403 - 404

doi:10.1038/scientificamerican06301888-403b

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Beetle Photography - p406

H. C. Hovey

doi:10.1038/scientificamerican06301888-406

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Calming the Sea with Oil - pp406 - 407

doi:10.1038/scientificamerican06301888-406a

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Execution by Electricity - p407

doi:10.1038/scientificamerican06301888-407

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Engineering Invention - p408

doi:10.1038/scientificamerican06301888-408

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Agricultural Invention - p408

doi:10.1038/scientificamerican06301888-408a

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Miscellaneous Inventions - p408

doi:10.1038/scientificamerican06301888-408b

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To Inventors - p409

doi:10.1038/scientificamerican06301888-409a

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