The O’Callahan Science Library has over 95,000 physical volumes and increasing numbers of electronic product occupies the entire first floor of Swords Hall, the central portion of the five-building Integrated Science Complex. The Science Library subscribes to over 50 major article databases just in the science disciplines, which contain access to thousands of journals.
The Library serves Biology, Chemistry, Mathematics & Computer Science and Physics, as well as the more neuroscientific side of Psychology.
There are four group study rooms in the Science Library. At the current time, only one room, Study Room 1, may be reserved in advance by a member of the Holy Cross community. Study Rooms 2-4 are only available on a first come, first served basis.