America's Industrial Supremacy Assured - p208

doi:10.1038/scientificamerican04031880-208

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Protectioh from Yellow Fever - pp208 - 209

doi:10.1038/scientificamerican04031880-208a

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Cheap Patents Cheapen Goods - p209

doi:10.1038/scientificamerican04031880-209

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New York Academy of Sciences - p209

doi:10.1038/scientificamerican04031880-209a

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Simple Burglar Alarm - p210

doi:10.1038/scientificamerican04031880-210

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The “New Pattern” Blake Crusher - p210

doi:10.1038/scientificamerican04031880-210a

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Mechanical Inventions - p210

doi:10.1038/scientificamerican04031880-210b

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American Industries.-No. 37 - p211

doi:10.1038/scientificamerican04031880-211

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Engineering Inventions - p213

doi:10.1038/scientificamerican04031880-213

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Scissors and Scale Measure - p213

doi:10.1038/scientificamerican04031880-213a

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Improvement in Jackscrews - p213

doi:10.1038/scientificamerican04031880-213b

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Improved Plant Sprinkler - p213

doi:10.1038/scientificamerican04031880-213c

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Improved Pruning Implement - p213

doi:10.1038/scientificamerican04031880-213d

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New Lubricator for Steam Engines - p214

doi:10.1038/scientificamerican04031880-214

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Miscellaneous Inventions - pp214 - 215

doi:10.1038/scientificamerican04031880-214a

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Venus' Girdle - p215

doi:10.1038/scientificamerican04031880-215

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Peripatus Capensis - p215

doi:10.1038/scientificamerican04031880-215a

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Specters in the Air - pp216 - 218

Chas. B Boyle

doi:10.1038/scientificamerican04031880-216

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Communications Received - p219

doi:10.1038/scientificamerican04031880-219a

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