Note 523 — Chapter XLII

BN 10271, fol. 203v, quoted by Haskins (1915), p. 67. It seems to me, however, from an examination of the MS that Roger’s work concludes at fol. 201v, “Explicit liber,” and that this extract, “Ad habendam noticiam quis est vel erit dominus anni,” at fol. 203v, may be another matter.