Implications of Choice and Arrangement of Texts in Part 4.
PPl in the Vernon manuscript is particularly close to the text of MS. Harley 875, but the Vernon text is heavily corrupt. The Vernon manuscript choice of exemplars for both PPl and book 2 of the Scale of Perfection does not suggest a compiler either able or concerned to select an authentic text.
Pearsall, Studies in the Vernon MS, 61-74, esp. 61-66, 72-73.
Hussey, S. S.