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Notes on Science and Foreign Inventions - p331
doi:10.1038/scientificamerican06271857-331c
Brick Cylinders in Sand for Bridge Piers - p333
doi:10.1038/scientificamerican06271857-333a
Canada Railroads and the Great Eastern - p333
doi:10.1038/scientificamerican06271857-333f
Who Invented the Menai Tubular Bridge? - p334
doi:10.1038/scientificamerican06271857-334a
