II. Use of Books.
1. Certain classes of material may be used only within the building. Among these are the University archives, typewritten theses, the serial set of United States government publications, U.S. topographical maps, the collection of bound pamphlets, books shelved in room 320 and all books marked with a double asterisk (**).
2. Current magazines, bound periodicals in class C, books shelved in Reading Room, Reserved Book Room and seminars may only be taken out twenty minutes before closing and must be returned within twenty minutes of opening next day.