A letter, in English, from Robert Vaughan of Hengwrt to James Ussher, archbishop of Armagh, concerning the dating of various historical events (pp. 1-44); and cywyddau and awdlau of Tudur Penllyn, Ieuan Tudur Penllyn and Dafydd Nanmor in the hand of Robert Vaughan (pp. 45-171).

Notes on early Welsh chronicles, the Book of Leinster, inscriptions, etc.

A miscellaneous gathering of papers, some of which have been endorsed by Bishop Humphreys: (a) papers relating to Denbighshire, including extracts from the Survey of 1334 (ff. 3-7); (b) copies of papers relating to the petition (1619) of Thomas Canon, Surveyor of Crown lands in South Wales, concerning the supplanting of the mountain thieves of Wales, and disposing habitations in convenient places (see Calendar of State Papers. Domestic 1619-1623, p. 55) (ff. 8-9); (c) copy of a list of the inhabitants of Anglesey who were amerced for being in arms and rebellion with Owen Glyndyfrdwy, 1406, with a table of the fines, copies of the jury panels, and a list of outlaws (a portion, the lists for the commote of Llivon from a fragment found among Edward Lhuyd's papers, was published in Archaeologia Cambrensis, 3rd ser., 5 (1859), pp. 177-180; Browne Willis, in A Survey of the Cathedral Church of Bangor... (London, 1721), pp. 84-85, quotes from a copy of this record, which he saw in the collection of the then Dean of Bangor) (ff. 61-90); (d) a seventeenth century Welsh calendar (ff. 10-16); (e) 'Catalogus Alphabeticus s[anc]torum Cambrobritannicae', by Bishop Humphreys (ff. 17-22); (f) copies of papers on British Chronology sent by Robert Vaughan of Hengwrt to Archbishop [James] Us[s]her (c.f. NLW MS 3044B) (ff. 23-51).