A religious treatise (v + 213 pp.) entitled 'Elw Mawr am Boen Fechan. Neu Gyfarwyddyd i gael Bodlonrwydd', followed by a list of chapter divisions ('Tabl o'r Cynhwysiad'). The work was completed 27 May 1707. Preceding the text is a series of nine complimentary verses entitled 'Englynnion o Barch a Chanmoliaeth i'r Llyfr a elwir Elw mawr am Boen Fechan' by 'C. G.', 30 May 1707, and at the end is an 'englyn' on 'Bodlonrwydd' in a later hand by 'Dafydd ap Tywyn'. There is at the beginning a page partly in the hand of the Reverend John Jones, Tyn'llwyn, Car[ ] containing entries of the burial [at Llanarmon Mynydd Mawr], 9 [5 in bishop's transcripts] February 1808, of Edward Maurice Plas yn Glynn ('fy haen Gyfaill'), and of the birth, 27 December, and baptism at Llanarmon Mynydd Mawr, 29 December, of Edwd. Maurice, grandson of the said Edward Maurice.