A volume of Welsh poetry mostly in the hand of Humphrey Davies (Wmffre Dafis), [vicar of Darowen], contining copies of cywyddau and awdlau by well-known and less known poets from the early fourteenth century to the early seventeenth century (pp. 25-492). Some poets are well represented, especially Ieuan Tew, Sion Keri and Huw Arwystl.
Twelve folios at the beginning (pp. 1-24), as well as six (formerly loose) folios at the end (pp. 493-504) are in the hand of Evan Lloyd of Blayn glyn, a former owner of the volume. These include a copy of a version of the dialogue between Hadrian and Epictetus, beginning: 'llyma ymddiddanion Rhwng adram [sic] emerodr Rhufein ag Epig y ddav wr calla yn y bvd', which differs greatly from the text found in Llyfr Yr Angkr and the Hengwrt MSS (pp. 3-7). Two other leaves (now bound in at the end of the volume), one bearing a Welsh poem in free metre (pp. 505-506) and the other an assessment of Derwen parish, [Denbighshire] (pp. 507-508), do not seem to belong to this volume.

A composite volume, the first portion of which (pp. 1-78, old foliation 1-38), written in the early eighteenth century, contains selections from Flores poetarum, triads, englynion, the divisions of Wales (pp. 29-33), cywyddau, poems in free metre, and an incomplete table of the contents of the latter portion of the volume (pp. 57-59). The second part of the volume (pp. 79-406, old foliation 1-245 with gaps) has been neatly written in two or more hands, one of the seventeenth century and the others of the early eighteenth century. It contains Welsh poems in strict and free metres from the fifteenth to the eighteenth centuries, many of them either of Anglesey interest or written by Anglesey poets, particularly Lewis Môn, Sion Brwynog and John Griffith of Llanddyfnan.
Among miscellaneous items are copies of the Articles of Agreement between the Parliamentary Commissioners and the inhabitants of Anglesey, 1648 (pp. 295-296); Sir Edward Trevor's riddle (p. 312); and a short bardic grammar (pp. 358-362).

A sixteenth-century manuscript containing a medical treatise in Welsh, recipes, charms, and an astrological fragment; a treatise on uroscopy in English; poetry, including a cywydd by Ieuan Brydydd Hir (hynaf); 'Llythyr Aresdotlys [...] o gadwedigaeth korff dyn ac gavas ynte yn hemyl yr havl [...]' (pp. 228-237); and a prologue to a work which is called 'Compod' ('o herwydd I vod ef yn comprehendio [...] kompod Manuwel') (pp. 197-200).
The manuscript is written in several hands of the early to late sixteenth century, possibly including that of its original owner Bened ap Rhys (Bened Feddyg) of Llanelidan, Dyffryn Clwyd, as well as Tudur ab Elise (see p. 150).

A volume in the hand of J. H. Davies containing transcripts of Welsh poetry, mainly 'englynion', lists of the compositions of Welsh poets of the 14th-16th centuries (titles and first lines) and a few miscellaneous notes. Nearly all the contents are copied from Jesus College MSS lxxxviii, ci, cxxxviii, cxxxix (R.W.M., Vol. II, Part I, Jesus College MSS 18, 17, 16, 14); the main source of the poetry is Jesus College MSS lxxxviii. The first three pages contain extracts from Ashmolean 847. There is some material from printed sources, including a plan (p. 166) of the British encampments and the mines worked by the Ancient Britons between Rheidol and Dovey, probably copied from J. G. Williams: A short account of the British Encampments lying between the rivers Rheidol & Llyfnant ... (Aberystwyth, 1866).

Two composite volumes of transcripts of Welsh texts, with copious annotations, in the hand of W[illiam] H[enry] Mounsey. The titles include 'Hynafion Dyffryn Clwyd' (printed in Y Brython, 1861, pp. 325-6), 'Llyma henwau Maen mawr werthiawg, ei gwrthiau, a'i nattur', 'Llyma lyfyr a elwir Graduelys' (Y Brython, 1860, pp. 413-16), 'Rhyfeddodau Palestin', 'Y Llyfr a elwir y Purdan', 'Prophwydoliaeth Dewi Sant', 'cywyddau' and 'englynion' by Huw ap Rissiart ap D'd, Evan Evans ['Ieuan Brydydd Hir'], Tudur Penllyn, Dafydd Nanmor, Morys Kyffin, 'Llyma henwae y kyffion kler a'r kerddorion a raddiwyd pan vu yr Eisteddfod ddiwaethaf yn tref Gaerwys', 'Llyfr Kadwedigaeth Kerdd Dant', Y Kaniadau y sydd ar y Bragod Gowair (with 'Ar y Kras Goweir y maent', etc.), 'Llyma ymddiddan a vu rhwng Adrian ag Eppig', 'Llyma Ache ag ymddiddane a vu rrwng Selyf ap D'dd brophwyd a Marcholffus', 'Hen chwedl Diawl y Dwndwr' (incomplete) (Y Brython, 1860, pp. 136-7), 'Herodraeth' [i.e. Llyfr Arfau or Disgrifiad Arfau] (incomplete), 'Llyma Ddosbarth y Saith Gelfyddyd', 'Prophwydoliaeth y Bardd Cwsg', 'Prophwydoliaeth y Wennol', 'Cynghorion i amryw ddolurie' (Y Brython, 1860, pp. 339-40), 'Klod Kerdd Dafod', (see D. Gwenallt Jones 'Clod Cerdd Dafod', Llen Cymru I, pp. 186-7), 'Achau Powys' (Y Brython, 1860, pp. 124-7), 'Chronicl Cymreig' (incomplete), 'Mynachlog yr Ysbryd Glân' (Y Brython, 1860, pp. 361-5), 'Arwyddion Dydd Barn' (Y Brython, 1860, p. 56), 'Buchedd Marthin Sant', 'Llyma ystori VII doethion Ryvain (Y Brython, 1860, pp. 81-94) (with variant readings), 'Hanes Gwidw' (Y Brython, 1860, pp. 241-6), 'Arglwydd Glyndwr' (Y Brython, 1860, p.345), 'Siartrau y Waen' (Y Brython, 1861, pp. 337-9), 'Rinwedd y Ceilog' (Y Brython, 1860, pp. 56-7), 'Llyma ystori teitys vab ysbysionys' (Y Brython, 1860, pp. 41-4), 'Pa le y claddwyd y Prydyddion hyn' (Y Brython, 1860, pp. 137-8), 'Rhinweddau croen Neidr' (Y Brython, 1860, p. 137), ['Man-gofion'] (Y Brython, 1860, p. 269), etc. The majority of the transcripts are based on manuscripts in the British Museum. There are occasional annotations and references in the hand of D. Silvan Evans. The volumes are lettered respectively 'Welsh Tracts MSS W. H. Mounsey Vol. I' and 'Welsh Tracts MSS W. H. Mounsey Vol. II.'

A notebook in the hand of J. H. Davies containing an alphabetical thumb index of first lines of the poetry of Tudur Aled.

A notebook in the hand of J. H. Davies, 1893, containing copious notes and extracts from Additional Manuscripts in the British Museum, e.g. notes by Lewis Morris in MS 15059, by [Edward Williams] 'Iolo Morganwg' in MS 15003, and Edward Charles in MS 15059; poetry and/or list of poems by Tudur Aled in MSS 14902 and 14866, Ieuan ap Rhydderch ap Ieuan Llwyd in MS 14866, and Gruffudd ap Ieuan ap Llywelyn Fychan in MS 14866; a list of manuscripts in the British Museum containing poetry by Ieuan ap Rhydderch ap Ieuan Llwyd; a list of 'Books of Travels thro' Wales'; brief notes on the contents of manuscripts in the Thomas Phillipps and Richard Fenton Collections; an alphabetical index of first lines of the poetry of Lewis Glyn Cothi; an alphabetical index of first lines of poetry in BM Add MS 14967; a list of contents of, and some transcripts from, the first part of the British Museum copy of Y Drych Cristianogawl (1585); etc.

A notebook in the hand of J. H. Davies containing a list of first lines of, and references to, poetry by Tudur Aled in manuscripts in the Peniarth Collection in the National Library of Wales.

A notebook in the hand of J. H. Davies containing a thumb-nail 'Glossary to Names of Persons and Places' in two volumes of the poetry of Tudur Aled (see Cwrtmawr MSS 154-5).

A notebook in the hand of J. H. Davies, 21 October 1891, containing notes of lectures by O. M. Edwards [at Lincoln College, Oxford] on constitutional history. Beginning at the end is a home-made thumb-nail glossary by J. H. Davies partly of words in the poetry of Tudur Aled and partly of Welsh ballads recorded under authors' surnames or first lines.

Thirty-two letters and one postcard, 1869-90, to D. Silvan Evans from Howel W[illiam] Lloyd (1816-93), Upper Chelsea and Kensington ('Y Marchog Crwydrad', mention of 'Llyfr Ceniarth', a manuscript containing poems by Huw Arwystli [sic], etc., bibliographical matters, his efforts to collect the poems of Guto'r Glyn, the addressee's dictionary).

Fifty-three files of unbound material accumulated by Bradney during the preparation of A History of Monmouthshire and containing press and proof copies, transcripts and abstracts of, and extracts from, manuscripts, deeds and documents, holograph and autograph letters, pedigrees and genealogical notes, press cuttings, etc., generally arranged under parishes. Much of the material is in the autographs of friends and official copyists. This volume contains letters, 1905-1914; extracts from Chancery Proceedings, Exchequer Bills and Answers, Exchequer of Pleas Enrolments, State Papers Domestic, Parliamentary Surveys, and deeds, 1146-1802; a list of rectors and vicars of Monmouthshire, 1146-1536; and 'cywyddau' of Monmouthshire interest by Guto'r Glyn and Dafydd Benwyn, transcribed by Lemuel James, Ystrad Mynach.

'Cywyddau' and other poems by John Vaughan, Wiliam Phylip, Siôn Phylip, Sion Dafydd ap Siencyn, Edwart ap Rhys, Raff ap Robert, Dafydd Nanmor, Gruff[u]dd Gr[y]g, Simwnt Fychan, Richard Phylip, Siôn Tudur, Llywelyn Goch ap Meurig Hen, Rhys Cain, Gruffudd Hiraethog, Dafydd ap Gwilym, Wiliam Llŷn, Syr David Owen, Dafydd Llwyd ap Llywelyn ap Gruffudd, Thomas Prys, Siôn Mowddwy, Wiliam Cynwal, Edmwnd Prys, Siôn Cain, Ellis Wynne, Ellis Rowland, Huw Llwyd Cynfal, Ffowc Prys, Iolo Goch, Dafydd Epynt, etc.

'Cywyddau' and other poems by Rhys Gray, Hywel Cilan, Huw ap Huw, Sion ap Hywel ap Llywelyn Fychan, Guto'r Glyn, Lewis Glyn Cothi, Dafydd ap Gwilym, Ieuan Dew Brydydd, Ieuan Brydydd Hir, Wiliam Llŷn, Iolo Goch, Gruffudd Gryg, Syr Dafydd Trefor, Dafydd Nanmor, Wiliam Cynwal, Lewis Menai, Sion Tudur, Tudur Penllyn, Gruffudd Hiraethog, Sion Brwynog, Dafydd ab Edmwnd, Lewis Môn, Llywelyn Moel y Pantri, Sion Dafydd Rhys, Hywel Rheinallt, Rhys Goch Eryri, Llywelyn Goch ap Meurig Hen, Ieuan Gethin ab Ieuan ap Lleision, Lewis Morganwg, Huw Llwyd Cynfal, Sion Phylip, Richard Phylip, Tudur Aled, John Davies, Owain Gwynedd and Sion Cent.

A seventeenth century collection of 'cywyddau' including poems by Bedo Aeldrem [sic], Dafydd ab Edmwnt, Dafydd ab Gwilym, Dafydd Nanmor, Dafydd Nanconwy, Deio ab Ieuan Du, Edmwnd Prys, Gruffydd ap Ieuan ap Llywelyn Fychan, Gruffudd ap Dafydd ap Hywel, Gruffudd Gryg, Gruffudd Hiraethog, Guto' r Glyn, Huw Dafydd Llwyd o Gynfal, Huw Arwystli, Huw ap Rhys Wyn, Huw Pennant, Hywel ap Rheinallt, Hywel Cilan, Ieuan Dyfi, Ieuan Llwyd Brydydd, Ieuan Gethin ap Ieuan ap Lleision, Ieuan Brydydd Hir, Inco Brydydd, Iolo Goch, Iorwerth Fynglwyd, Lewys Daron, Lewis Glyn Cothi, Lewys Môn, Lewis Menai, Maredudd ap Rhys, Morgan ap Huw Lewys, Morys ab Ieuan ab Eigan, Morus Dwyfech, Owain Waed Da, Rhys Goch Glyndyfrdwy, Rhys Goch Eryri, Rhys Pennardd, Rhisiart Gruffudd ap Huw, Rhisiart ap Hywel Dafydd, Robert Leiaf, Simwnt Fychan, Siôn Brwynog, Siôn Cent, Siôn Phylip, Siôn Mawddwy, Siôn Tudur, Sypyn Cyfeiliog, Syr Dafydd Trefor, Syr Huw Jones, Tudur Aled, and William Llŷn; 'cywyddau' and 'englynion' on the psalms; 'cywydd byr hanes . . . Crickieth'; an englyn by John Lloyd, Llysfasi. The manuscript belonged at one time to Lewis Morris, who filled in gaps, adding notes and some new material.

Transcripts of Welsh poetry by Owen Williams, Waunfawr, 1859, including poems by Ieuan Tew Hynaf, Siôn Brwynog, Dafydd ab Ieuan ab Owain, Cadwaladr Cesail o'r Gesail Gyfarch, Dafydd Nanmor, Dafydd ab Edmwnd, William Llŷn, Rhys Cain, Simwnt Fychan, Iolo Goch, Robin Ddu, Ieuan Môn, Guto'r Glyn, Ieuan ap Madog ab Dafydd, Gruffydd Llwyd, Lewys Daron, Syr John [Siôn] Leiaf, Hugh Pennant, Rhys Nanmor, Siôn Dafydd Penllyn, Syr Dafydd Owain, Gruffydd ab Ieuan ab Llywelyn Fychan, Hywel Cilan, Siôn Tudur, Lewys Môn, Hywel Gethin, Ieuan ap Gruffudd Leiaf, Watcyn ap Rhisiart, Hywel ap Rheinallt, Mathew Bromfield, Watcyn Clywedog and Adda Fras; with a note of the sources of 'Llyfr Mr. Lloyd Ffestiniog' then (1859) in the possession of David Williams, solicitor, Bron Eryri.

A transcript by Ioan Pedr and others of NLW MSS 1246-1247D, which contain transcripts by Rhys Jones ('o'r Blaenau') of 'cywyddau' and other poetry by Wiliam Llŷn, Rhys Goch Glyndyfrdwy, Tudur Aled, Edward Mor[y]s, Gruffudd Hiraethog, Gruffudd ab Ieuan ap Llywelyn Fychan, Gruffudd Gr[y]g, Dafydd ab Edmwnd, Lewis Daron, Lewis Menai, Siôn Tudur, Goronwy Owen, Sion Dafydd Las [John Davies], Thomas Prys, Huw Mor[y]s, Dafydd ap Gwilym, Dafydd Nanmor, Morys Dwyfech [Morus ap Dafydd ab Ifan ab Einion], Rhys Cain, Bedo Brwynllys, Bedo Aeddren, Ieuan Deulwyn, Gruffudd Llwyd ap Dafydd ab Einion [Llygliw], Edwart Urien, Siôn Cain, Ieuan Dew Brydydd, Lewis Glyn Cothi, Lewis Trefnant, Maredudd ap Rhys, Tudur Penllyn, Ieuan ap Hywel Swrdwal, Llawdden, Owain Gwynedd, Sion Ceri, Syr Ifan [o Garno], Robin Ddu, Hywel [ap] Rheinallt, Gutun Owain, Guto'r Glyn, Huw Arwystli, Dafydd Ddu Hiraddug, Ieuan ap Tudur Penllyn, Iolo Goch, Siôn Cent, Ieuan Brydydd Hir [Hynaf], Huw Llwyd Cynfal, Gruffudd Llwyd ab Ieuan, Richard Cynwal, Huw Machno, Robert Dyfi, Iorwerth Fynglwyd, Syr Rhys o Garno, Hywel ap Dafydd ab Ieuan ap Rhys, Richard Phylip, Evan Evans ('Ieuan Brydydd Hir' ['Ieuan Fardd']), Ieuan Du'r Bilwg, Aneirin Gwawdrydd, Taliesin, Morys ab Ieuan ab Einion, Deio ab Ieuan Du, Rhys Pennardd, Meil[y]r Brydydd, Cynddelw [Brydydd Mawr], Thomas Jones (Tregaron), Wiliam Cynwal, Llywarch Hen, Bedo Hafes[b], Huw Pennant, Edward Richard (Ystradmeurig) and David Richards ('Dafydd Ionawr').

Transcripts by Ioan Pedr and others of poems by Iolo Goch, Rhys ap Hywel [ap Dafydd], Dafydd Owain, Gruffudd Hiraethog, Siôn Cent, Catrin ferch Gruffudd ap Hywel ('o Lan Ddeiniolen'), Syr Phylip o Emlyn, Siôn Phylip, William ap Robert, Edmwnd Prys, Rhys Wyn ap Cadwaladr, Owain Gwynedd, Deio ab Ieuan Du, Tudur Penllyn, Tudur Aled, Dafydd [ap] Llywelyn ap Madog, Simwnt Fychan, Richard Cynwal, Siôn Cain, Dafydd Nanmor, Edwart Urien, Gruffudd Phylip, [Ifan] Tudur Owen, Dafydd Llwyd ap Wiliam [David Lloyd], Siôn M[a]wddwy, Siôn Brwynog, Richard Phylip, Dafydd Llwyd ap Hywel ap Robert, Dafydd ap Gwilym, Dafydd ab Edmwnd, Wiliam Cynwal, Thomas Prys, Robin Ddu, Richard Prise, Richard Owen ap Richard, Rhys ab Ednyfed, Dafydd Nanmor, Hywel ap Dafydd ab Ieuan [ap Rhys] and Bedo Hafes[b]; 'Trioedd Taliesin'; 'Y pedwar gwell ar hugain'; 'Tri thlws ar ddeg o frenin dlysau Ynys Brydain'; original poems and translations from French, German and Italian by Ioan Pedr, and a short note on the literature of Brittany.

Transcripts by Ioan Pedr and others of 'cywyddau' by Thomas Prys, Gruffudd Hiraethog, Siôn Tudur, Ieuan Llwyd o'r T[y]wyn, Guto'r Glyn, Llywelyn Goch ap Meurig Hen, Richard Gruff[y]dd ap Huw, Dafydd ab Edmwnd, Gruffudd Kenrick Coch, Edmwnd Prys, Owain Waed Da, Hywel Cilan, Iorwerth Fynglwyd, Owain ap Llywelyn ap Moel y Pantri, Tudur Aled, Mor[y]s ab Ieuan ab Ein[io]n, Robert Leiaf, Ieuan Dyfi, Wiliam Llŷn, Huw Arwystli, Siôn Cent, Gruffudd ab Ieuan ap Llywelyn Fychan, Dafydd Nanmor, Siôn Phylip, Rhys ap Hywel ap Dafydd ab Einion, Lew[y]s Môn, Syr Dafydd Owain, Gruffudd Gryg and Dafydd ap Gwilym.