An Electrical Life Saver Wanted - p144

doi:10.1038/scientificamerican03051892-144

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Reform of the Immigration Laws - pp144 - 145

doi:10.1038/scientificamerican03051892-144a

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The Recent Earthquake in Japan - p146

doi:10.1038/scientificamerican03051892-146

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A Twin Staircase - p146

doi:10.1038/scientificamerican03051892-146a

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An Improved Ore Crusher - p147

doi:10.1038/scientificamerican03051892-147

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A New Feed Water Heater and Purifier - p147

doi:10.1038/scientificamerican03051892-147a

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Destruction of Emanations of All Kinds without the Use of Chemicals - p148

doi:10.1038/scientificamerican03051892-148a

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Utilizing the Water Power of Niagara Falls - p149

doi:10.1038/scientificamerican03051892-149

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A Machine to Roll Hollow Rods - p150

doi:10.1038/scientificamerican03051892-150

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Rain Making in India - pp150 - 151

doi:10.1038/scientificamerican03051892-150a

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What is Electricity? - pp152 - 153

Foree Bain

doi:10.1038/scientificamerican03051892-152

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Experiments with Illuminating Gas - p153

T. O'Conor Sloane, Ph. D.

doi:10.1038/scientificamerican03051892-153

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To Inventors - p155

doi:10.1038/scientificamerican03051892-155b

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