Blueprints (reprographic copies)

Diaries, correspondence, printed materials, and photographs of American chemical engineer James Cloyd Downs.

Organizational records of the Microanalysis Society, which include correspondence, financial records, administrative files, meeting files, printed materials, and drawing reproductions. Most of the materials in these records were created during the period in which the society was named the Electron Probe Analysis Society of America (1966-1973) and the Microbeam Analysis Society (1974-2010).