This series contains the administrative and financial records of the explosives and chemical companies absorbed by DuPont in the years after 1902, many of them former competitors. Included are records from the American Forcite Powder Company, Anthracite Powder Company, Arlington Company, Atlantic Giant Powder Company, Hercules Powder Company, Eastern Dynamite Company, Grasselli Chemical Company, Roessler & Hasslacher Chemical Co., Repauno Chemical Co., Hazard Powder Company, Laflin & Rand Powder Company, Oriental Powder Company, Phoenix Powder Manufacturing Company, and many others. In all, the records of 243 companies are represented. Typically, these collections include stockholder and director minutes, financial records (ledgers, journals, and cashbooks), and stock transfer books. Occasionally, there are property records, sales records, patent files, and production records. For the most part, these records span the period 1880-1902. The records are arranged alphabetically by company.