Formerly Emeritus Professor of The Nottingham Trent University, the late IVOR H. SEELEY held many external examining and advisory appointments with universities in the UK and overseas, as well as being external examiner to several professional bodies. He was a member of the RICS General Council continuously from 1970 and served on many other RICS councils and education committees over the years. As a former local government chief technical officer, he was responsible for extensive housing and other building developments; he also served at the Headquarters of the former Central Electricity Generating Board on power station contracts and with two firms of consultants. Author of 15 technical books, he was Series Editor of the Macmillan Building and Surveying Series. ROGER WINFIELD was Principal Lecturer in Quantity Surveying and Director of Studies in the Department of Surveying at Nottingham Trent University, UK.