Durham University there is no formal teaching at Durham colleges (with the exception of Cranmer Hall theological college within St John's), although colleges are active in research. The colleges dominate the residential, social, sporting, and pastoral functions within the university, and there is heavy student involvement in their operation. Formal dinners (known as "formals") are held at every college; gowns are worn to these events at just over half of the colleges. Gowns are not worn for formals at Collingwood, St Aidan's, St Cuthbert's, Hild Bede, Van Mildert, Stephenson or Ustinov. There is a great deal of intercollegiate rivalry, particularly in rowing
St Cuthbert Gospel Lindau Gospels (750–800, Morgan Library) now survives complete, though there are several references to them, most famously to that of the Book of Kells, which was lost after a theft in 1007. Various metal fragments of what were probably book-mounts have survived, usually adapted as jewellery by Vikings. In the context of the cult of Cuthbert, the lavishly illuminated Lindisfarne Gospels were made at Lindisfarne, probably shortly after the St Cuthbert Gospel, with covers involving metalwork, perhaps entirely made in it, which are also now lost. Plainer, very early bindings in leather are almost as rare as treasure bindings, as