A slate inscribed on one side with eleven lines of Welsh poetry, seemingly religious in nature, and written in the cywydd metre. The surface of the slate is particularly smooth and clean.
For transcripts see E. D. Jones, 'Ysgriflechi Cymraeg Ystrad Fflur', in Llên Cymru, 1 (1950), 1-6 (p. 5) and E. D. Jones, 'Inscribed Slates from Strata Florida', in Ceredigion, 1 (1950), 103-105 (p. 104).

A slate inscribed on one side with twenty-three lines of Welsh poetry in two columns in the cyhydedd naw ban metre; the second column in particular is imperfect.
For a transcript see E. D. Jones, 'Ysgriflechi Cymraeg Ystrad Fflur', in Llên Cymru, 1 (1950), 1-6 (p. 4). There is a reddish colour to the inscribed side of the slate (dye or chalk, likely applied at NLW for previous exhibitions).

A slate inscribed with ten lines of Welsh poetry on one side and a further ten lines on the reverse. The poetry is written in the cywydd metre, with both lines of the first six couplets written together on the same line.
For a transcript see E. D. Jones, 'Ysgriflechi Cymraeg Ystrad Fflur', in Llên Cymru, 1 (1950), 1-6 (p. 5). There is a reddish colour to both sides (dye or chalk, likely applied at NLW for previous exhibitions).

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 collection of awdlau and cywyddau, including a substantial section of poems ascribed to Guto'r Glyn (pp. 151-300) and Dafydd ap Gwilym (pp. 355-379). The manuscript also includes a copy of Chaucer's Treatise on the Astrolabe (pp. 87-100). Gwenogryn Evans states that pp. 1-22, 335-406 and 410-33 are written in an archaic style in the early part of the seventeenth century, while pp. 23-85, 101-33 and 151-303 belong to the last quarter of the sixteenth century. Other parts of the manuscript are later additions, except the vellum leaf (pp. 305-6).

A collection of Welsh strict-metre poetry of the fourteenth, fifteenth and sixteenth centuries, including works by Ieuan Gethin ab Ieuan ap Lleision, Iolo Goch, Lewys Mon, Tudur Aled, Hywel Cilan, Gutun Owain, Guto'r Glyn, Ieuan ap Tudur Penllyn, Dafydd Llwyd o Fathafarn, Rhys Pennardd, Tudur Penllyn, Morus ap Hywel ap Tudur, Deio ab Ieuan Ddu, Gruffudd Hiraethog, Rhys o'r Hengaer, Wiliam Cynwal, Edward Brwynllys, Dafydd Nanmor, Sion Ceri, Huw Arwystl, Dafydd ap Siancyn ap Dafydd ap y Crach, Wiliam Llŷn, Rhys Cain, Rhisiart ap Hywel ap Dafydd ab Einion, Hywel Rheinallt, Gruffudd Llwyd ap Dafydd ab Einion Llygliw, Sion Tudur and Tomas Derllys. A cursory examination of the items included in the manuscript suggests that about ten of the poems are not recorded in other manuscripts. The volume is written in several hands of the late sixteenth century including those of Simwnt Fychan (ff. 73-75) and Wiliam Cynwal (ff. 79-81), two of the bardic pupils of Gruffudd Hiraethog, and also the hand of Rhys Cain, the herald bard of Oswestry, who was a pupil of Wiliam Llŷn, another of Gruffudd Hiraethog's pupils (ff. 4-6 verso, 101 verso-148 verso).

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 manuscript containing poetry by Iolo Goch, Dafydd ab Edmwnd, Guto'r Glyn, Lewis Glyn Cothi, Wiliam Llŷn and others.

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 manuscript containing poetry by Guto'r Glyn, Siôn Tudur, Wiliam Llŷn, Gruffydd Phylip and others.

A volume of 'englynion' entitled 'llyfr wiliam Siôn o fryn saeth', and partly in the hand of David Jones ('Dewi Fardd'). Many of the 'englynion' are unattributed, and the few poets represented in the volume are William Cynwal, Lewis Glyn Cothi, Ellis ap Llew[elyn], Rhys ap Niclas, Sion Philip, Dr. Sion Siengcin, Lewis Menai, Owen Jones ('o dref machynlleth'), Sion Tudur, Thomas Eufan, Ed'd ap Raff, Wm. Sion Wyn, Da'dd Siengcin, Iolo Goch, Dafydd Jones ('o Drefriw, tan yr yw', 'Dewi Fardd', 'Dewi Sion'), Moris Powel, Hyw Morris ('ar ei glafwely'), William Philip, Owen Griffydd, Mr. Mredydd Wyn ('o lanyfudd'), and Rowlant Preis. Also bound in the volume are a list of texts of sermons, 1720-1724, preached partly by Mr. Anwill, Mr. Nanney, and Mr. Thomas; and fragments of printed almanacs, among them being that of [Thomas Jones], 1686, and that of [John Jones, 'Philomath'], 1739, both published in Shrewsbury.

'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.

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).

Cyfrol, 1750-[1752], yn llaw Edward Llwyd, Llundain, yn cynnwys copïau o wyth deg pum cerdd, cywyddau yn bennaf. Ymysg y beirdd a gynrhychiolir mae Dafydd Nanmor (5), Doctor John Cent (7), Rhys ap Ednyfed (2), Guto'r Glyn (6), Dafydd ap Gwilym (4), Syr Dafydd Trefor (2), Lewis Glyn Cothi (4), Wiliam Llŷn (3), Tudur Penllyn (2), Bleddyn Fardd (5), Meilir Brydydd (2), Llywarch Brydydd y Moch (2), Lewys Môn (2), Simwnt Fychan (2), Siôn Tudur (7), Edward ap Ralph (2) a Iolo Goch (2). = A volume, 1750-[1752], in the hand of Edward Llwyd, London, containing copies of eighty-five poems, mainly cywyddau. Amongst the poets represented are Dafydd Nanmor (5), Doctor John Cent (7), Rhys ap Ednyfed (2), Guto'r Glyn (6), Dafydd ap Gwilym (4), Syr Dafydd Trefor (2), Lewis Glyn Cothi (4), Wiliam Llŷn (3), Tudur Penllyn (2), Bleddyn Fardd (5), Meilir Brydydd (2), Llywarch Brydydd y Moch (2), Lewys Môn (2), Simwnt Fychan (2), Siôn Tudur (7), Edward ap Ralph (2) and Iolo Goch (2).
Mae'n debyg i'r gyfrol gael ei ailddefnyddio fel llyfr nodiadau (gw. t. 251) ond oherwydd colled nifer o ddalennau ychydig iawn o olion o'r fath ddefnydd sydd wedi goroesi. Mae ychydig nodiadau mewn pensil ar tt. 247, 250-251 a thu mewn i'r clawr cefn mewn llaw diweddarach. = The volume was apparently reused as a 'Mamarandam Boock' (see p. 251) but due to the loss of several leaves little trace of such use remains. A few notes in pencil on pp. 247, 250-251 and inside the back cover are in a later hand.

A manuscript in the autograph of Evan Evans (Ieuan Fardd) containing poetry by Iolo Goch, Dafydd ap Gwilym, Siôn Cent, Dafydd Llwyd ap Llywelyn ap Gruffudd, Lewis Glyn Cothi and Lewys Morganwg.

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'.

A manuscript, written 1772 (note at beginning of volume), by Evan Evans (Ieuan Fardd), containing poetry from a 1613 manuscript of Llywelyn Siôn (pp. 1-6, 10-22, 26-176, 273-336); and a pedigree of the Herbert family, earls of Pembroke (pp. 177-224); a letter from W[illiam] Baxter relating to the Archaeologia Britannica (pp. 225-248); extracts; etc. The poets cited include Gruffudd Gryg, Hywel ap Dafydd ab Ieuan ap Rhys, Tudur Aled and Guto'r Glyn.

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.'