A manuscript containing dated extracts from Brut y Tywysogion (pp. 1-16); and a chronological table 'out of Sir Tho. S. Sebright's MS. No 13. Ex libro D'ni Jo. Prise Militis'.
A manuscript in the hand of Moses Williams containing a pedigree of the saints. The text beginning at p. 13 is copied from Bib. Harleian MS 95 A. 16; the text beginning at p. 21 is copied from Jesus College MS 3, p. 34.
A manuscript containing medical recipes, lists of names of medicinal plants, etc. Much of the text agrees practically with that of the Meddygon Myddfai, but the order is quite different, and the wording varies also.
A manuscript in the hand of Moses Williams containing 'Kelvyddyd kerdd Davod' (ff. 1-5a), being a copy of pp. 10-16 of Llanstephan MS 28, with a note stating that 'This imperfect Tract I transcribed out of a MS. writ by Guttyn Owain A.D. 1455 & communicated to me by D Foulkes of Llanbedr Dyffryn Clwyd.'; and an extract 'Out of Huw Machno's Book' (ff. 5b-12b) outlining the fifteen faults which may be committed when writing Welsh verse, with examples. The text cites a line from Wiliam Cynwal.
A manuscript in the hand of Moses Williams containing a transcript of the 'Cornish Vocabulary' in MS Cotton Vesp. a. XIV, followed by 'the same reduced into alphabetical order and compared with the Welsh' (ff. 1-48); and Wiliam Llŷn's 'Glossary' from MS Cott. Vesp. E. IX, followed by 'The same Alphabetically digested.'
A manuscript, mainly in the hand of James Davies ('Iaco ab Dewi') of 'Trerhedyn yn Llan Llawddoc' and completed 15 July 1713 (see p. 30), containing 'Meddygon Myddfai', being a transcript from the Red Book of Hergest, Col. 928. The manuscript is interleaved throughout, and passages of the text are translated here and there on the interleaves by Moses Williams.
A manuscript containing a copy of Aristotle's Book of Physiognomy (originally written by Aristotle for Alexander the Great) (ff. 1-9) (cf. Jesus College MS 7, p. 48); material relating to astrology (ff. 10-26); and Traethiad Robin Moyses (ff. 26-28). The two works contained in ff. 1-19 are copied from a manuscript written by John Jones, Gellilyfdy in 1604, which was copied by Jones from a manuscript written in 1476.
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 (pp. 1-4) and another (pp. 5-66) containing a transcript of Kulhwch ac Olwen and of Y Mabinogion from the Red Book of Hergest.
A manuscript in the hand of Moses Williams containing Triads and Gorwynnion from the Red Book of Hergest, Englynion y Clywaid from Jesus College MS 3, and XIII Tlws.
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 containing mystery plays in Cornish, with English translations and a Latin Preface, by John Keigwin (see Lot 1126 in the Sebright sale, 13 April 1807); and an elegy to King James in Cornish by Edward Lhuyd, with a translation into English by John Keigwin.
