A notebook in the hand of David Evans, Llanrwst containing 'Y Llinell Gyntaf o bob Cerdd Cywydd a charol sydd yn yr hen Almanaciau ynghyd a henwau yr Awdwyr', i.e. a chronological list of first lines of poetry in strict and free metres published in Welsh almanacs from 1686 to 1786. The free metre poetry, 'carolau' and 'cerddi' are arranged separately under each author.

A scribbling tablet in the hand of J. H. Davies containing extracts and notes from manuscripts in the British Museum, the National Library of Wales and Cardiff Free Library and from printed sources largely on the correspondence of, and poetry by or relating to, the Morris brothers ('Morysiaid Môn'), Goronwy Owen ('o Fôn'), Evan Evans ('Ieuan Fardd') and Edward Williams ('Iolo Morganwg').

A composite volume made up of copies of Yr Odydd Cymreig, Cyf. 1 (1842), Rhif 2, 3, 4, and articles on 'Llyfrgelloedd ' (Y Traethodydd, 1858-9), 'Y Bardd o'r Nant a'i Waith' (Y Traethodydd, 1875), 'Y Bardd o'r Nant a'r Cerddi Bedydd' (Y Traethodydd, 1876), and 'Sallwyr Cymraeg', a review of Twr Dafydd: sef Salmau Dafydd wedi eu cyfaddasu ar Gân ... gan y Parchedig William Rees, Liverpool (Dinbych: Thomas Gee, 1875), followed by some miscellaneous press-cuttings.

Notes by John Davies on the pedigree of John Rhydderch; extracts from almanacs, 1709, 1729, including poems by John Rhydderch, D[afydd] Manuel, Evan William[s] 'Delyniwr o Langybi yn Sir Gaernarfon'; and a list of ballads composed or printed by John Rhydderch.

A volume of popular Welsh poems on religious and scriptural themes written c. 1673-1674 by James Phillipp(es), with additions made a generation later by Phillipp James. The poems belong to the type of verse known in Cardiganshire as 'halsingod'. Linguistic evidence suggests that the authors were natives of East Carmarthenshire.

Notebooks of Robert John Pryse (Gweirydd ap Rhys), containing shelf lists of parts of his library; a list of books which he acquired from Daniel P. Jones; material for an essay ('Hanes Feirniadol Barddoniaeth Gymraeg y 18fed ganrif'); a copy of the grant of a Royal Bounty to R. J. Pryse, 1887; and a letter by M. O. Evans, Independent minister at Trefriw, 1884.

A commonplace book kept by Ioan Pedr containing a large number of notes on a variety of subjects; 'englynion', hymns and other poetry; folk- and nursery-rhymes; tales, games and anecdotes relating mainly to Bala and district; a Welsh translation of Shakespeare: Hamlet, Act I, Scene I; notes on sheep ear-marks, with examples and diagrams; lists of poems by Thomas Edwards ('Twm o'r Nant'); biographical, bibliographical and philological notes, including lists of dialect words; inscriptions and epitaphs at Llanycil church; a copy of a letter written 21 September 1828 from Delaware, U.S.A., by John Edwards ('Eos Glan Twrch') to his parents at Tynyfedw, Cynllwyd, Merioneth; etc.

A volume containing a transcript, 1785, by Evan Evans (Ieuan Fardd) of Henry Salesbury's Dictionary (pp. 5-152). Also included is an elegy to Evan Evans, [1788], in the autograph of David Ellis (pp. 1-2).

A manuscript in the hand of Evan Evans, containing mainly poetry by Bleddyn Fardd, Lewis Glyn Cothi, Goronwy Owen and others (ff. 1-49, 56-62); and a list of feast days (ff. 50-55).
This manuscript was used for the Myvyrian Archaiology of Wales, partly for text and partly for variant notes. Peniarth MS 111 seems to be the original of this manuscript. A note on f. 12 states 'Hyd yma ym tyb i yr yscrifennodd Roesser Morys allan or Llyfr Du o Gaer Vyrddin'.

Cyfrol yn cynnwys barddoniaeth Gymraeg a chynghorion meddygol a ddangoswyd, yn ôl nodyn (f. 63 verso) gan John Jones (Jac Glanygors), i John Edwards (Siôn Ceiriog) yn Llundain, 11 Gorffennaf 1790. = A volume containing poetry in Welsh and medical recipes shown, according to a note (f. 63 verso) by John Jones (Jac Glanygors), to John Edwards (Siôn Ceiriog) in London, 11 July 1790.
Mae'r gyfrol yn cynnwys cywyddau ac englynion o'r 16 gan. hyd at 18 gan., gan gynnwys gweithiau Gruffydd ap Ieuan ap Llywelyn Fychan, 'Syr' Dafydd Owain, Siôn Tudur, Simwnt Fychan, Thomas Prys o Blas Iolyn, William Phylip, ac Ellis Rowland o Harlech (ff. 1-41), ac englynion Saesneg (f. 1 verso); ceir rysáit llawfeddygol ar f. 7, cynghorion meddygol rhwng ff. 41 verso a 63 verso, a nodyn, 28 Gorffennaf 1790, gan David Samwell (Dafydd Ddu Feddyg) ar f. 64; fe nodir rhai o'r cerddi a'r ryseitiau ar dudalen gynnwys (f. 66 verso). = The volume comprises 'cywyddau' and 'englynion' from 16 cent. to 18 cent., including the works of Gruffydd ap Ieuan ap Llywelyn Fychan, 'Syr' Dafydd Owain, Siôn Tudur, Simwnt Fychan, Thomas Prys of Plas Iolyn, William Phylip, and Ellis Rowland of Harlech (ff. 1-41), and English poetry written in the 'englyn' metre (f. 1 verso); a veterinary recipe is included on f. 7, medical recipes between ff. 41 verso and 63 verso, and a note, 28 July 1790, by David Samwell (Dafydd Ddu Feddyg) on f. 64; some of the poetic works and recipes are listed in a contents' page (f. 66 verso).

Adysgrif, 1863, yn bennaf yn llaw D[aniel] L[ewis] Moses, gynt o Lanbedr Pont Steffan, o'r gyfrol Barddoniaeth Dafydd ab Gwilym, gol. gan Owen Jones a William Owen (Llundain, 1789). = Transcript, 1863, mainly in the hand of D[aniel] L[ewis] Moses, formerly of Lampeter, of the volume Barddoniaeth Dafydd ab Gwilym, ed. by Owen Jones and William Owen (London, 1789).
Mae'r llawysgrif yn cynnwys y cyfan o gerddi Dafydd ap Gwilym yn y gyfrol, heblaw am ambell i fwlch, damweiniol mae'n debyg, ar tt. 67, 354 a 423 ac eraill o bosib (tt. 1-210, 249-492). Mae hefyd yn cynnwys cerddi ffug Iolo Morganwg o'r atodiad (tt. 211-243); crynodeb, yng Nghymraeg, o hanes Dafydd (yn Saesneg) gan Owen Jones (ff. vi-xii); y marwnadau i Dafydd (ff. xii verso-xv verso); a chychwyn (Abermaw-Gwdion ab Don) yr eirfa Saesneg o bobol a llefydd yn y cerddi (tt. 493-502). Heblaw am Moses, ysgrifennwyd y llawysgrif mewn dwy law ychwanegol (tt. 249-279 a 297-328 yn eu tro). = The manuscript contains all the Dafydd ap Gwilym poems, except for a few apparently unintentional lacunae on pp. 67, 354 and 423 and possibly elsewhere (pp. 1-210, 249-492). It also includes Iolo Morganwg’s forgeries from the appendix (pp. 211-243); a precis, in Welsh, of Owen Jones's (English) biography of Dafydd (ff. vi-xii); the elegies to Dafydd (ff. xii verso-xv verso); and the beginning (Abermaw-Gwdion ab Don) of the English glossary of people and places mentioned in the poems (pp. 493-502). Besides Moses, parts of the manuscript are written in two additional hands (pp. 249-279 and 297-328 respectively).

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 small group of autograph Welsh poems, mostly relating to the Wynne family, consisting of: (i) anonymous verses entitled 'Penillion cufaddas i'r amser yma ...', beginning 'Pob haden lawen lonudd su ai miwsig hud meusudd ...' (f. 1); (ii) 'Cywydd Marw-nad er coffadwriaeth am Farwolaeth Gwraig foneddigaeth sef Mrs Wyn o Fodewryd yr hon a hunodd yn yr Arglwydd y 31 o fis Awst 1723', by Robert ap Richard (ff. 2-3); (iii) 'Cowydd priodas Mr Chansaler Wyn a chroeso ir wlad', by William Morgan Lloyd, [1714] (ff. 4-5); (iv) 'Cywydd Marwnad y gwir Barchedig Dad yn Nuw Humphreu Humphres Arglwydd Esgob Henffordd', by Owen Gruffydd, [1712] (ff. 6-7); (v) a translation into Welsh of 'Of Noble Race was Shenkin' and Latin verse mainly in the autograph of Chancellor Wynne (ff. 8-9); (vi) a poem 'I'r haeddol Barchedig Mdm Margaret Humphreys', by David Manuel (f. 10); and (vii) 'Cerdd i Annerch, ynghyd a mawl ddyledus i Mr Edward Owens, o Benrhos, ar dôn a elwir Marwnad yr Helwyr', by Richard Parry (f. 11).
Also included are miscellaneous accounts, 1693-1729 (ff. 12-14, 17-18, 20), and two letters from Wm Lloyd, Kefn, to Mrs Wynne, 14 February 1712/3 (ff. 15-16), and to Dr Wynne, 28 April 1730 (ff. 19-20).

Llawysgrif yn dwyn y teitl 'Detholiad o adroddiadau (recitations) Cymreig mewn rhyddiaith a barddoniaeth, dwys a llon. Testun yr Eisteddfod Genhedlaethol 1863' yn cynnwys englynion (tt. 1-7), awdlau a chywyddau (tt. 7-15), caneuon a phryddestau (tt. 15-21), canu caeth a chanu rhydd (tt. 21-48) a rhyddiaith (tt. 49-72). Mae'r awdur yn anhysbys. = A manuscript entitled 'Detholiad o adroddiadau (recitations) Cymreig mewn rhyddiaith a barddoniaeth, dwys a llon. Testun yr Eisteddfod Genhedlaethol 1863' ['Selection of Welsh Recitations in Prose and Poetry, Grave and Gay. Subject for the National Eisteddfod 1863'], containing transcripts of englynion (pp. 1-7), odes and cywyddau (pp. 7-15), songs and pryddestau (pp. 15-21), verse in strict and free metres (pp. 21-48) and prose (pp. 49-72). The author is unknown.
Ymysg y beirdd a gynrhychiolir mae [William Williams] (Caledfryn) (tt. 1, 34, 41-42, 44-48), [William Rees] (Gwilym Hiraethog) (tt. 1, 8-9, 37, 40-44), [Richard Foulkes Edwards] (R[hisiart] Ddu o Wynedd) (tt. 2, 3), [Evan Jones] (Ieuan Gwynedd) (tt. 3, 38), [Thomas Essile Davies] (D[ewi] W[yn] o Essyllt) (tt. 3-4, 7-8, 17-18), [David Owen] (D[ewi] Wyn o Eifion) (tt. 4, 9), [Robert Ellis] (Cynddelw) (tt. 9-10, 23-24), [William Ellis Jones] (Cawrdaf) (tt. 10-11, 33-34), [John] Ceiriog [Hughes] (tt. 19-20, 25, 29-31, 47), [John Jones] (Tegid) (tt. 24, 31), [Robert Parry] (Robyn Ddu o Eryri) (tt. 36, 45-46) a [David Thomas] (D[afydd] Ddu o Eryri) (tt. 36-39, 42, 44). Ymysg y darnau rhyddaith mae yna dri darn gan J[ohn] Roberts [J.R.] (tt. 49-56, 60-64, 66-69). Roedd y testun yn rhif 4 yn adran Rhyddiaith Eisteddfod Genedlaethol 1863; yn y pen draw rhannwyd y wobr rhwng J. D. Jones, Rhuthun, Rhydderch o Fôn a Gwilym Teilo. = Amongst the poets represented are [William Williams] (Caledfryn) (pp. 1, 34, 41-42, 44-48), [William Rees] (Gwilym Hiraethog) (pp. 1, 8-9, 37, 40-44), [Richard Foulkes Edwards] R[hisiart] Ddu o Wynedd (pp. 2, 3), [Evan Jones] (Ieuan Gwynedd) (pp. 3, 38), [Thomas Essile Davies] (D[ewi] W[yn] o Essyllt) (pp. 3-4, 7-8, 17-18), [David Owen] (D[ewi] Wyn o Eifion) (pp. 4, 9), [Robert Ellis] (Cynddelw) (pp. 9-10, 23-24), [William Ellis Jones] (Cawrdaf) (pp. 10-11, 33-34), [John] Ceiriog [Hughes] (pp. 19-20, 25, 29-31, 47), [John Jones] (Tegid) (pp. 24, 31), [Robert Parry] (Robyn Ddu o Eryri) (pp. 36, 45-46) and [David Thomas] (D[afydd] Ddu o Eryri) (pp. 36-39, 42, 44). The prose pieces include three items by J[ohn] Roberts [J.R.] (pp. 49-56, 60-64, 66-69). The subject was No. 4 in the Prose section of the 1863 National Eisteddfod; the prize was ultimately shared between J. D. Jones, Ruthin, Rhydderch o Fôn and Gwilym Teilo.

Papurau W. J. Gruffydd,[1903]-[1952], yn cynnwys drafftiau o erthyglau'n ymwneud â'r Mabinogi; nodiadau darlith ar gyfer ei gyrsiau Cymraeg yng Ngholeg Prifysgol Cymru, Caerdydd; nodiadau darlithoedd ac erthyglau eraill; sgyrsiau a darlledwyd gan y BBC; personalia; a grŵp sylweddol o ohebiaeth oddi wrth ffigurau llenyddol blaenllaw = Papers of W. J. Gruffydd, [1903]-[1952], including drafts of articles relating to the Mabinogi; lecture notes for his Welsh courses at University College of Wales, Cardiff; other lecture notes and articles; BBC broadcast talks; personalia; and a substantial group of correspondence from notable literary figures.

A transcript by William Jones ('Bleddyn'), Llangollen of 'cywyddau' and 'englynion', etc. by Gwerful Mechain, Hywel Dafi [Hywel ap Dafydd ab Ieuan ap Rhys], Sion ap Philpot, Robert ap Dafydd Llwyd, Gruffudd Leiaf, Iorwerth Fynglwyd, Dafydd Llwyd ap Llywelyn ap Gruffudd, Sion ap Hywel ap Tudur, Huw Cae Llwyd, Lewis Daron, Bedo Brwynllys, Syr Rhys o Gar[no], 'Twm o'r Nant' [Thomas Edwards], 'Person Llangwm', Tudur Aled, Morys ap Hywel ap Tudur, Gruffudd Hiraethog, Huw Llwyd Cynfal, Ieuan Dew Brydydd, Dafydd ap Gwilym, Richard Cynwal, Huw Machno, Syr John [Sion] Leiaf, [Sir] Huw Pennant, Rhys Nanmor, Sion Dafydd Lâs [John Davies], Syr Dafydd Owain, Gruffudd ab Ieuan ap Llywelyn Fychan, Hywel Cilan, Sion Tudur, Lewis Môn, Hywel Gethin, Ieuan ap Gruffudd Leiaf, Watcyn ap Rhisiart, Hywel ap Rheinallt, Mathew Brwmffild, Guto'r Glyn, Watcyn Clywedog, Wiliam Llŷn, Wiliam Cynwal, Simwnt Fychan, Ieuan Llafar, Thomas Prys, William Vaughan, Huw Arwystli, Sion Phylip, Richard Phylip, Ieuan Dyfi, Lewis Menai, Rhys Goch Glyndyfrdwy, Llywelyn ap Gutun, Madog Leiaf and Ieuan ap Rhydderch, with 'englynion' by Dafydd Nanmor, Cadwaladr Ces[ai]l, Huw Ifan ap Huw ('o'r Brynbychan') and Siôn Ifan.

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').

An incomplete miscellany, in the form of three unbound volumes, of free- and strict-metre poetry (including illustrative extracts), compiled by David Thomas ('Dafydd Ddu Eryri') under the title of 'Golwg a'r Parnassus, a Helicon, Sef, Casgliad neulltuol, neu Bigion Dewisol Allan o Waith Prif feirdd neu Brydyddion yr oesoedd, sef y Rhannau hyny o'u Gwaith na ymddangosodd yn argraphedig Hyd yn hyn ond mewn hen Sgrifeniadau, yn Englynion A chywyddau. yn Ddwy Rann; un yn Ddigrifol ar llall yn ddifrifol. O Gascliad, Dewi, ab Thomas, Waunfawr. A Sgrifenwyd yn y flwyddyn 1781'. The preface ('Rhagymadrodd at y Darllenydd') indicates both the period and partly the source of the volume: 'Y Darnau canlynol o Brydyddiaeth a Sgrifennwyd Gennyf yn fy Ieuenctyd, Pan ddechreuais Gyntaf Gael blas, ar farddoniaeth Reolaidd Ac yn ol fy nhŷb i, y Pryd hwnnw, maent yn Brif orchestwaith, Pigion, neu oreuon, Gwaith yr hen Feirdd ... Yr a adsgrifennais wrth ymdeithi[o] yn ddamweiniol, heibio'r lleoedd yr oeddynt iw gweled fel y Gwelwch yn Enwau'r Eglwysydd'. The poets represented include Rhichard Phylip; Maredudd ap Rhys; David Thomas ('Dafydd Ddu Eryri'); Hugh Hughes ('Y Bardd Coch o Fôn') (1766); Huw Morys; Siôn Cent; William Phylip; Elis Roberts; Dafydd ap Gwilym; Siôn Phylip; Bedo Brwynllys; Tudur Aled; Gruffudd Hiraethog; Siôn Brwynog; Siôn Tudur; Edward Morys; Owen Gruffydd; and Siôn Mawddwy. The titles include 'Englynion i Sir feirionydd'; 'Englynion Iw gosod ar fedd Huw Jones o Langwm ...'; and 'Englyn i Hugh Lloyd Cynfel'. Additions in other hands include some music scores of carol tunes and calligraphic exercises.

Transcripts by Ioan Pedr from manuscripts of Robert Jones (Tydu, Cwmglanllafar) and John Jones ('Myrddin Fardd') of 'cerddi' and 'cywyddau' by David Jones ('Dafydd Sion Siams'), Elis Roberts, Thomas Edwards ('Twm o'r Nant'), Hugh Jones (Llangwm), John Thomas (Pentrefoelas), Rice Hughes ('o Ddinam'), Owen Gruffydd, Robin Ddu, Dafydd Gorlech, John Roger, Mor[y]s ab Ieuan ab Einion, Thomas Prys, Gruffudd Hiraethog, Siôn Tudur, Guto'r Glyn, Llywelyn Goch ap Meurig Hen, Gruffudd Gryg and Dafydd ap Gwilym.

A volume of transcripts of poetry, mainly 'cywyddau' and 'englynion', by Iowerth Fynglwyd, William Llŷn, Huw Cae Llwyd, Gwilym ap Sefnyn, Dafydd Nanmor, Thomas Prys, Syr Dafydd Trefor, Aneurin Gwawdrudd ('Anearan Gwowdrudd'), Rhys Pennardd, Iolo Goch, Gutun Ceiriog, Siôn Mawddwy, Dio ap Ifan Du, Rhys Goch Glyndyfrdwy, Dafydd ap Edmwnd, Dafydd Ddu o Hiraddug, Philip John Philip, Siôn Philip, Owain Gwynedd, Ieuan Brydydd Hir, Siôn Cent, David Jones, Rhys Wynn, Siôn Tudur, Dafydd ap Gwilym, Dafydd Llwyd ap Llywelyn ap Gruffudd, Meredydd ap Rees, Llywelyn ap Gutun, Syr Owain ap Gwilym, Griffith Philip, Rowland Vaughan, Richard Philip, Edmwnd Prys, Robin Ragett, Tudur Aled, John Prichard Prys, Robert Klidro, Ellis Rowland 'o Harlech', Hugh Llwyd 'o Gynfal', Huw Morris, Lewis Morris, Mr. David Roberts, Rice Lloyd, Moris ap Robert, Bala, and Thomas Jones, Orsedd Las. The greater part of the volume was written in the early eighteenth century. Among slightly later hands at the end of the volume is that of William Jones of Orsedd Las. At the end of the volume is a letter from a Welsh emigrant, written from Delaware, 21 September, 1828.