A manuscript, apparently in the hand of John David, containing a transcript of Rawlinson MS C. 821 (pp. 1-107); 'Am ossodedigethau Dyfnwal ... moel ...' (pp. 109-110); excerpts, in Welsh, from a very old manuscript of the Laws which was in the possession of John Edwardes of Chirk (pp. 111-128); 'a lettre & exposition of Welsh words in Hoel Da's lawes written to Mr. ffr. Tate [Francis Tate, who has a note dated 23 January 1613 at the end of Vesp. E. XI] ...' (pp. 129-131); and 'The exposition of words' (pp. 132-148).
A manuscript containing 'Kyngor Katw ddoeth ar Bardd glas', being a transcript by Samuel Williams of a manuscript written in 1604 by John Jones, Gellilyfdy.
A manuscript in the hand of Moses Williams containing the Interpretation of Dreams from Llanstephan MS 28; and 'Gr. ap kynan twssog kymry a wnaith gyfreth ar y gwyr wrth gerdd' in a seventeenth century hand.
A manuscript entitled 'Immanuel neu Ddirgelwch Cnawdoliaeth mab Duw' in the hand of the Reverend Samuel Williams. The text is a Welsh translation of Archbishop James Ussher's Immanuel: or, The mystery of the incarnation of the Son of God (1638). Samuel Williams ends his text with a citation from the work of the poet Sion Phylip.
A manuscript containing the 'grammar' of Dafydd Ddu o Hiraddug (fl. before 1400), i.e. his 'llyfr cerddwriaeth' dealing with the structure and art of bardism and verse. A note on p. 31 records that this manuscript was copied from a book belonging to Wiliam Llŷn (1534 or 5-1580), which had in turn been copied from a book belonging to Dafydd ab Edmwnd (fl. 1450-1490). Cf Mostyn MS 110, Jesus College MS 9, Peniarth MS 62, etc.
A manuscript containing 'Gofal Tylwyth neu Ddyled Pennau Teuluoedd', being a translation into Welsh by the Reverend Samuel Williams of 'A domestick charge, or, The duty of household-governours ...' by Erasmus Saunders, M.A. of Jesus College, Oxford. This text is followed by Gweddiau Teuluoedd by the Reverend Samuel Williams.
Poetry, including the Ymrysson (flyting poetry) between Archdeacon Edmwnd Prys and Wiliam Cynwal (see Peniarth MS 43); other poets cited include Taliesin, Iolo Goch, Dafydd ap Gwilym and Gruffudd Hiraethog. For the englynion numbered 28-118 cf. Peniarth MS 70, pp. 59-66.
A manuscript containing flyting poetry exchanged between Archdeacon Edmwnd Prys and Wiliam Cynwal. Following the death of Wiliam Cynwal, Edmwnd Prys breaks off the exchange and composes an elegy to his erstwhile poetic rival (p. 177). Another elegy by Edmwnd Prys, to Siôn Phylip, occurs on p. 187. Richard Morris indexed the manuscript for W. Jones, Armiger, R.S.S., London, 1747 (see pp. iii-v). At p. 124 there is a copy of a letter from Edmwnd Prys to Wiliam Cynwal which refers to nine cywyddau of Wiliam Cynwal, of which a note on p. 93 of Peniarth MS 125 informs us the ninth was lost. The extensive explanatory marginalia accompanying the compositions of Edmwnd Prys, coupled with the fact that the elegy to Siôn Phylip was evidently once folded and carried in the pocket, suggests that this manuscript may be a holograph once belonging to Edmwnd Prys. Much of the text of this manuscript, or one of the same archetype, was transcribed into Peniarth MS 125, though Peniarth MS 49 has four additional lines following 'Dôd i ddôl dedwdd Wiliam ...'.
A manuscript containing 'Traethawd ynghylch Dychymmygjon Dynjon yn Addoliad Duw', being a translation of the work of William King, lord bishop of Dublin. At the beginning of the volume are prefixed two leaves containing a list of Welsh place names and their Latin equivalents.
A manuscript mainly containing cywyddau of Dafydd ap Gwilym (pp. 1-240). Pp. i-xviii are in the autograph of Moses Williams (1685-1742) and the remainder of the text in that of his brother Samuel Williams. P. i is headed 'Welsh names of Men & Women' and p. xviii is headed 'Librorum MSS. Catalogus'. Pp. 241-250 contain a table of contents. The one hundred and sixty three poems contained in the text have been numbered by Moses Williams's friend William Jones (1675-1749), who once owned the Shirburn collection of manuscripts.
