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Important to Manufacturers and Railway Companies - p362
doi:10.1038/scientificamerican07301853-362a
American Inventions and Sir Charles Lyell - p363
doi:10.1038/scientificamerican07301853-363c
New Method of Analyses for Organic Poisons by C. Flandin - p368
doi:10.1038/scientificamerican07301853-368