CLASP Handlist Book: Brown, Michelle, 'Writing in the Insular World', in The Cambridge History of the Book in Britain , 6 vols (Cambridge: Cambridge University Press, 1999-2012), I: 400-1100 (2012), ed. by Richard Gameson, pp. 121-66 (p. 158 n. 173) Manuscript references in: London, British Library, Cotton Tiberius A. xiv London, British Library, Cotton Tiberius A. xiv London, British Library, Cotton Tiberius A. xiv