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 on each side, but crossing stems are also seen on the upper north face of the Bewcastle Cross and a cross in the church at Hexham. Meyer Schapiro compares the motif with one in an initial in the later Book of Kells. It was suggested by Berthe van Regemorter that in the St Cuthbert Gospel this design represents Christ (as the central bud) and the Four Evangelists as the grapes, following , "I am the vine, ye are the branches", but this idea has been treated with caution by other scholars. The two panels of interlace use the same design,