A slightly abridged text, on vellum (circa 1400), with unusual readings, of William Briton (or Breton)'s best known work 'Vocabularium Bibliae', a treatise explanatory of obscure words in the Vulgate version of the Bible; a short treatise on prosody; and a fragment of an abridgement (circa 1450) of Alexander Neckam's 'Repertorium Bibliae', a work similar to the 'Vocabularium Bibliae'.
The letter-book of the Merionethshire Permanent Benefit Building Society, 1890-1909, containing also copies of letters relating to the slate industry in the Ffestiniog district, 1925.
Copies kept by W. J. Parry, Bethesda, Caernarvonshire of letters which he wrote as secretary of Eisteddfod Cymreigyddion Bethesda, Caernarvonshire, 1863-1867.
Parry, W. J. (William John), 1842-1927 Correspondence, 1863-1867, copies, NLW MS 4460A
A manuscript entitled A true Copy of an Ancient memorable Treatise of Record touching the Progeny and Descent of the Honorable Name & Family of the Herbert's, by Commission from Edward IV. An. Dom. 1460, the copy including genealogies of and notes on the family of Herbert, lords of Raglan, earls of Pembroke, and their descendants, together with similar information on other Monmouthshire families.
A transcript made in 1805 by Thomas Evans (Tomos Glyn Cothi) (1764-1833) of the treatise on Welsh bardism by Edward Williams (Iolo Morganwg) (1747-1826) which was published by Taliesin Williams (Taliesin ab Iolo) (1787-1847) as Cyfrinach Beirdd Ynys Prydain (Abertawy, 1829), together with a few hymns, including Addysg i'r Iefaingc by Tomos Glyn Cothi.
Evans, Thomas, 1764-1833 Transcript of Cyfrinach Beirdd Ynys Prydain (1805), NLW MS 4430B Hymns by (early 19 cent.), NLW MS 4430B
Miscellaneous financial accounts, memoranda, copies of hymns, names of preachers, sermon notes, etc., most of them relating to the Calvinistic Methodist chapel at Tregaron, and ranging in date from c. 1841, when the volume belonged to Samuel Lloyd, to c. 1882.
Legal precedents and a transcript of presentments at the court leet and court baron of the manors of Llangwest (sic), Wrexham Abbott and Stansty Isaf, 14 November 1791 and 29 June 1792.
Typescripts of abstracts of documents, 1730-1734, relating to the will of John Roberts, Philadelphia, Pennsylvania, a native of Llandderfel, Merioneth, with details of bequests, including some to persons in Bala and the neighbourhood.
Mi'at-'awamil' or Mi'at-'amil', an adaptation of Abubakr Jurjani's Arabic treatise on the hundred grammatical regents, in Persian verse, in the forms of a qasidah.
The Inundation. A Fragment from the Welsh, being an autograph translation, 1807, by David Thomas (Dafydd Ddu Eryri) (1759-1822) of the poem beginning Seithenhin sawde allan ... in Llyfr Du Caerfyrddin, with autobiographical notes by Thomas and a note dated 9 January 1807 from him to a Mr Prett.
Thomas, David, 1759-1822 Seithenhin sawde allan ..., translation of (1807), NLW MS 4354C Autobiographical notes (1807), NLW MS 4354C Note from (1807), NLW MS 4354C
A register, 1647-1649, giving particulars of the sale of episcopal lands in England and Wales, including the dioceses of St Asaph, Bangor, St Davids and Llandaff.