The Division of Labor - p272

doi:10.1038/scientificamerican04301881-272

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The Study of Animal Motions - p272

doi:10.1038/scientificamerican04301881-272a

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The Electric Light in Akron, Ohio - p272

doi:10.1038/scientificamerican04301881-272b

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More about Pickett's Cave - p273

H. C. Hovey

doi:10.1038/scientificamerican04301881-273

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Standard Time in the United States - pp273 - 274

doi:10.1038/scientificamerican04301881-273a

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Improved Water Meter - p274

doi:10.1038/scientificamerican04301881-274

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Improved Force Pump - p274

doi:10.1038/scientificamerican04301881-274a

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Mechanical Inventions - p274

doi:10.1038/scientificamerican04301881-274b

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American Industries.—No. 72 - pp275 - 276

doi:10.1038/scientificamerican04301881-275

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Hanger for Shafting - p276

doi:10.1038/scientificamerican04301881-276

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Recent Decisions Relating to Patents - p277

doi:10.1038/scientificamerican04301881-277

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Hulling Cotton Seed - p278

doi:10.1038/scientificamerican04301881-278

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Miscellaneous Inventions - pp278 - 279

doi:10.1038/scientificamerican04301881-278a

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The Stag Beetle and Champion Beetle - pp279 - 280

doi:10.1038/scientificamerican04301881-279

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The Colors of the Stars - p281

doi:10.1038/scientificamerican04301881-281

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Richly Decorated Vase - p281

doi:10.1038/scientificamerican04301881-281a

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Communications Received - p283

doi:10.1038/scientificamerican04301881-283

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