 cit., p. 16) describes the great book containing names of benefactors (Liber Vitæ) that was kept on the high altar, chapter xxi the forms for giving sanctuary to accused persons.They had to use the knocker, still shown to visitors, and when they were received, to wear a black gown with a yellow cross "of St. Cuthbert" on the left shoulder (ed.cit., p. 41).