The King's Buildings campus is located in the south of the city. Most of the Science and Engineering College's research and teaching activities take place at the campus, which occupies a 35-hectare site. It includes the Alexander Graham Bell Building (for mobile phones and digital communications systems), James Clerk Maxwell Building (the administrative and teaching centre of the School of Physics and Astronomy and School of Mathematics), Joseph Black Building (home to the School of Chemistry), Royal Observatory, Swann Building (the Wellcome Trust Centre for Cell Biology), Waddington Building (the Centre for Systems Biology at Edinburgh), William Rankine Building (School of Engineering's Institute for Infrastructure and Environment), and others. Until 2012, the KB campus was served by three libraries: Darwin Library, James Clerk Maxwell Library, and Robertson Engineering and Science Library. These were replaced by the Noreen and Kenneth Murray Library opened for the academic year 2012/13. The campus also hosts the National e-Science Centre (NeSC), Scotland's Rural College (SRUC), Scottish Institute for Enterprise (SIE), Scottish Microelectronics Centre (SMC), and Scottish Universities Environmental Research Centre (SUERC).
