I'd just like to add that I too was at the Symposium. It's the third one I've attended: 1992 in Louvain-la-Neuve, 1994 in Dublin, then this one in Oxford. These symposia are my all-time favourite academic gatherings: they are fairly small (this year's was the biggest, with 60 people attending), and extremely friendly. The papers are often works in progress, and those who hear the papers give their advice freely and courteously. A joy! George %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%