Edwards, Anthony Stockwell Garfield and Pearsall, Derek Albert. Middle English Prose: Essays on Bibliographical Problems (New York and London: Garland Publishing, 1981), p. 109.Eldredge, L. M. The Index of Middle English Prose, Handlist IX: Manuscripts in the Ashmole Collection, Bodleian Library, Oxford (Woodbridge: Boydell and Brewer, 2007), p. 64.Getz, Faye. Healing and Society in Medieval England: A Middle English Translation of the Pharmaceutical Writings of Gilbertus Anglicus (Madison: University of Wisconsin Press, 1991), p. xlii.Hanna, Ralph. The Index of Middle English Prose Handlist I: Manuscripts in the Henry E. Huntington Library (Woodbridge: Boydell and Brewer, 2007), p. 4.Ogilvie-Thompson., S. J. The Index of Middle English Prose Handlist VIII: Manuscripts Containing Middle English Prose in Oxford College Libraries (Woodbridge: Boydell and Brewer, 2007), p. 8.Taavitsainen, Irma. The Index of Middle English Prose, Handlist X: Manuscripts in Scandinavian Collections (Woodbridge: Boydell and Brewer, 2007), p. 16.Tavormina, M. Teresa. 'The Middle English Letter of Ipocras', English Studies, 88:6 (2007), pp. 632-652.Tavormina, M. Teresa. Uroscopy in Middle English: a Guide to the Texts and Manuscripts, Studies in Medieval and Renaissance History, ser. 3, no. 11 (University of Michigan, 2014), passim.Wells, John Edwin. A Manual of the Writings in Middle English, 1050-1500, vol. 10 (New Haven: Connecticut Academy of Arts and Sciences, 1998), p. 3822.