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Improvements in Expansive Steam Engines - p129
doi:10.1038/scientificamerican01051856-129d
American Fire Arm Machinery for Great Britain - p130
doi:10.1038/scientificamerican01051856-130
Interesting Account of the Great Polar Sea Discovered by Dr. Kane - p131
doi:10.1038/scientificamerican01051856-131b
A British Exploring Ship found Abandoned in the Arctic Seas - p131
doi:10.1038/scientificamerican01051856-131c
A New and Improved System of Numeration and Measurement - p134
doi:10.1038/scientificamerican01051856-134
