The Book of Deer, 43 folios of manuscript, containing parts of the Gospels and the Apostles' Creed, is one of the treasures of the Cambridge University Library. The Book is important not so much for its primary contents as for the notes in Gaelic which have been added to it in some of the available blank spaces. These notes record the foundation 'myth' of the monastery of Deer in north-east Aberdeenshire, and formal recordings of various grants of...