Maximum Load Due to Crowding - p318

doi:10.1038/scientificamerican04221905-318

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Rojestvensky - p318

doi:10.1038/scientificamerican04221905-318a

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Radium on Metals - p318

doi:10.1038/scientificamerican04221905-318b

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Our Heritage of the Mechanical Arts - p319

Alex. Del Mar, M.E.

doi:10.1038/scientificamerican04221905-319

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Novelties in Fire Alarms - p319

doi:10.1038/scientificamerican04221905-319a

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Science Notes - p319

doi:10.1038/scientificamerican04221905-319b

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Maximum Load Due to a Crowd of People - p320

doi:10.1038/scientificamerican04221905-320

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Disappearing Coast-Defense Guns - p320

doi:10.1038/scientificamerican04221905-320a

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The Vesuvius of America - pp321 - 322

Day Allen Willey

doi:10.1038/scientificamerican04221905-321

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A Leadless Sounding Apparatus - p323

Alfred Gradenwitz

doi:10.1038/scientificamerican04221905-323

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Realism in Military Maneuvers - p324

W. G. Fitz-Gerald

doi:10.1038/scientificamerican04221905-324

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The Concrete Amphitheater at Berkeley, Cal - pp324 - 326

Enos Brown

doi:10.1038/scientificamerican04221905-324a

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An Electric Street Sprinkler - p326

doi:10.1038/scientificamerican04221905-326

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Patent Department - p327

doi:10.1038/scientificamerican04221905-327

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Improved Belt-Stud Tool - p327

doi:10.1038/scientificamerican04221905-327a

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Improved Shell-Digger - p327

doi:10.1038/scientificamerican04221905-327b

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Oddities in Inventions - p327

doi:10.1038/scientificamerican04221905-327c

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Business and Personal Wants - p329

doi:10.1038/scientificamerican04221905-329

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