further extension to the Engineering accommodation in the form of the Wolfson and Raleigh buildings that same year and the Murray building, housing the Social Sciences departments, in 1975. 1970s and 1980s Development slowed during the 1970s and 1980s as economic problems started to bite and it was during this period that the design concepts of the Basil Spence plan started to be dropped in favour of more conventional styles such as brick. The long-awaited Administration building, designed again by the Sheppard Robson Partnership, was constructed south of the library in 1970 and allowed these departments to move out of the main library building for the first time. This was followed in 1974 with the long-awaited opening of the Turner Sims Concert Hall. Resulting from a £30,000 bequest from Margaret Grassam Sims for this purpose, the new concert hall would allow music performances to move out of the increasingly busy Nuffield Theatre and into an environment specifically designed for music. The design of the hall itself was by staff from the University's Institute of Sound and Vibration Research ensuring the hall's good acoustics. Following on from these high impact developments, the campus saw several smaller developments: Clarkson House, a small halls of residence suitable for disabled students and now the Early Years Centre, opened in 1978 just south of the Administration building and partly funded by the British Council for the Disabled, the Clarkson Foundation and the Department of Health and Social Security. New facilities for Engineering were being constructed behind housing (now demolished) in University Crescent and were all of the industrial nature: the R J Mitchell Wind Tunnel was relocated from Farnborough and reconstructed in 1981, the A B Woods underwater laboratory in 1989 and the Tony Davies High Voltage Laboratory in 1991. The final building from this period was a small addition located on Burgess Road next to the Oceanography building. Now housing some of ECS, it opened in 1989 and was designed by Sheppard Robson. 1990-1998 Following the slow pace of capital development projects during the previous decade, projects started again at the end of the 1980s. The first building of the new decade to be completed was the new Mountbatten building, allowing the Electronics and Computer Science department to move out of the Engineering accommodation. Completed in 1991 it was designed by the John S Bonnington Partnership, Basil Spence's former practice and who had worked