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  1. Hand book of explosives for farmers, planters, ranchers; how to clear land ... dig ditches, grade roads ...
    By: Du Pont de Nemours, E. I., powder co., Wilmington, Del.
    Publication info: Wilmington, Del.,E. J. Du Pont de Nemours powder co.,c1910
    Contributed by: Library of Congress
    BHL Collections: Library of Congress
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