Many of the materials relate to explosives (manufacture, testing, storage and magazines, composition and analysis, firearms, ballistic research, smokeless powder, nitroglycerine, cellulose, and government relations, domestic and foreign), including research work of Francis I. du Pont (1873-1942) and Fin Sparre (1879-1944), the latter as chief chemist and director of the Station. Detailed paper inventory (filed under previous accession 0537) available on request.