402 Introduction The following locations in the Commonwealth of Pennsylvania are served by the University Libraries: University Park Campus, seventeen Commonwealth Educational System libraries, Penn State-Behrend, Penn State Harrisburg, and Penn State Great Valley. At University Park Campus, the humanities and social sciences collection, the Arts Library, and the Life Sciences Library are maintained in Pattee Library. Other subject collections are housed in the following branch libraries--Architecture Library (Engineering Unit C), Earth and Mineral Sciences (Deike), Education Library (Rackley), Engineering (Hammond), Mathematics (McAllister), and Physical Sciences ( Davey). Pollock Library provides a small collection and study space in the Pollock residence hall area. We are here to help you use these services and collections, so please do not hesitate to ask for assistance. Brochures and guides describing in more detail specific aspects of the University Libraries are available. . 0