The student
must prepare a dissertation, embodying original research, under the supervision
of a sponsor approved for that Ph.D. program by the Executive Committee of the
Faculty of the Graduate School and the Dean. Graduate School policy requires that all
dissertations be written in English. Rare exceptions may be granted only with
prior approval of the Executive Committee of the Graduate School of Arts and
Sciences and the Dean (after departmental approval of the topic, but well
before research has begun). Guidelines governing exceptions are available from
the Dissertation Office, 107 Low Memorial Library.