CLASP Handlist Book: Teviotdale, Elizabeth C., ‘Some thoughts on the place of origin of the Cotton Troper’, in Cantus Planus: Papers Read at the Fourth Meeting, Pécs, Hungary, 3–8 September 1990 (Budapest, 1992), pp. 407–12. Manuscript references in: London, British Library, Cotton Caligula A. xiv London, British Library, Cotton Caligula A. xiv