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British Association for the Advancement of Science - p10
doi:10.1038/scientificamerican09281850-10
American Association for the Advancement of Science - p10
doi:10.1038/scientificamerican09281850-10a
Invention for the Opening of Iron Shutters of Stores - p12
doi:10.1038/scientificamerican09281850-12d
Machine for the Artificial Production of Ice - p13
doi:10.1038/scientificamerican09281850-13b
A Question for the Curious—Molten Metals - p13
doi:10.1038/scientificamerican09281850-13d
War about the Materials of the Washington Monument - p13
doi:10.1038/scientificamerican09281850-13f
Steam between Philadelphia and Liverpool - p14
doi:10.1038/scientificamerican09281850-14b