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Improved Steam and Water Rotary Engine - p345
doi:10.1038/scientificamerican07221848-345b
Girard and the U. S. Banks, and the Vicksburg Railroad - p345
doi:10.1038/scientificamerican07221848-345h
Palpitation of the Heart—Tea, Coffee and Tobacco - p346
doi:10.1038/scientificamerican07221848-346l
Discovery of Mummies at Durango in Mexico - p347
doi:10.1038/scientificamerican07221848-347b
Great Improvement in Filtering Water - p348
doi:10.1038/scientificamerican07221848-348d
Mode of Measuring the Depth of the Sea - p348
doi:10.1038/scientificamerican07221848-348g
The Action of the Acetate of Morphia on Children - p352
doi:10.1038/scientificamerican07221848-352b