The online catalog gives periodical holdings in all Duke libraries. You can also check holding at UNC , NC State and NC Central in their catalogs. Journals not held at Duke can be located through WorldCat . Most of the journals in the Science and Engineering Libraries circulate only for limited periods of time, if at all. Engineering journals circulate for twenty-four hours to Duke affiliates.
Biology journals circulate overnight to graduate students, staff, and faculty only.
Math journals circulate for four weeks. Physics and Chemistry journals do not circulate. If the issue isn't in any of these places ask a library staff member to check if it has been received or if it is at the bindery. If the issue is a bound volume, check the shelves around where it is supposed to be. Someone may have put it in an empty space out of order.