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The Webster-Higgins Patent Suit - pp368 - 369
doi:10.1038/scientificamerican12151888-368a
A Night Trip in a Balloon without a Car - pp375 - 376
doi:10.1038/scientificamerican12151888-375
Simple Experiments in Physics - p377
M. Hopkins
doi:10.1038/scientificamerican12151888-377