The collection consists of works, correspondence, documents, photographs, and printed matter of Hulett (Princeton Class of 1892), professor of chemistry at Princeton (1909-1935) and authority on "standard cells." The collection contains his papers, notes, notebooks, and professional and personal correspondence, including letters by Woodrow Wilson and some by students and colleagues sent to Hulett on his 75th (1942) and 80th (1947) birthdays. Also included is material which reflects his year (1912) as chief chemist with the U.S. Bureau of Mines, his years during World War I with the American Scientific Mission investigating the use of chemical and physical effects of gases and with the United States Chemical Warfare Service, and later years when he served as a member of the U.S. Assay Commission. In addition, there are bound volumes of the off-prints of his published papers and a large oversize folder of manuscript survey maps of the area around where the current Woodrow Wilson School is housed on Washington Road in Princeton.