Manuscripts and Archives is open Monday through Friday, 8:30 A.M. to 4:45 P.M. and will remain open until 6:45 P.M. on Tuesday, Wednesday, and Thursday evenings during the semester. Exceptions are posted on the library website. In planning your research visit, please be aware that we do not provide reference service between 12:00 noon and 1:00 P.M. or after 4:45 P.M.