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Converting Rotary into Reciprocating Rectileniar Motion - p316
doi:10.1038/scientificamerican06191852-316i
Light Houses and our Light-House System - p317
doi:10.1038/scientificamerican06191852-317a
The Reformation of the United States Judiciary System - p318
doi:10.1038/scientificamerican06191852-318a