Books by Powder Co. E.I. Du Pont de Nemours:
Books in the extended shelves:
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E.I. Du Pont de Nemours, Powder Co., Wilmington, Del: Du Pont farmer's handbook; instructions in the use of dynamite for clearing land, planting and cultivating trees, drainage, ditching and subsoiling. (E.I. du Pont de Nemours Powder Co., 1911) (page images at HathiTrust)
Find more by Powder Co. E.I. Du Pont de Nemours at your library, or elsewhere.