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Miscellaneous papers containing notes, lists, jottings, etc., of an extremely varied nature in the hand of Edward Williams ('Iolo Morganwg') bound into one volume. The contents, pagination in brackets, include a copy of a notice relating to the proclamation in 1816 of the holding of a bardic convention at Pen rhiw'r gwydd in the cantref of Garth Mathrin, co. Glamorgan, in the following year (30-31); a list of 'Druidical altars in Glamorgan' (38-9); brief genealogical data relating to Llywelyn Bren Ail of Sainghenydd [ob. 1317] (45); a list of 'Documents of Welsh History Translated from Ancient British Manuscripts by Edward Williams' and a list of four dissertations relating to early British history, 'ancient Welsh MSS.', etc. [by the said Edward Williams] ? to be published in part form (46-7); another list of source material headed 'By Edward Williams. Welsh Historical Documents Collections for a New History of Wales consisting of Translations of' (48); a list of events, etc., relating mainly to British history A.D. 79 - A.D. 460 (54-5); a brief note on the church and parish of Lanedarn, co. Glamorgan (61); a sketch ground plan of the lay-out of Rumney house and garden (62-3); brief lists or groups of Welsh words (64, 92, 105, 113, 117- 18, 123, 125, 133, 138, 155, 165, 204-12, 218-19, 259, 331-2, 334, 340-41, 361-2, 370, 371, 389); a short pedigree tracing the descent in direct line of Dafydd ap Hopkin from Bleddyn ap Maenarch (68); five draft stanzas of a Welsh hymn and two other stanzas of Welsh verse (70); a list of fifteen items under the heading 'Yniales' being presumably a list of items contained in an alleged manuscript volume bearing that name (74; see TLLM, sub nomine in index); an incomplete note on a meeting of bards and musicians at Castell Nedd, ? 1088, convened by Rys ap Tewdwr and attended by Iestyn ap Gwrgan and his wife and daughter Nest, and the saving of the daughter from Rys's intended abduction of her (73-4); miscellanea including Welsh triads, brief notes on Gower sheep, Hereford Ryelands in Glamorgan, the production of butter in Glamorgan, etc. (72, 75, 77); a list of Welsh names of grammatical tenses (83); a brief note on the village of Wrinston and its neighbourhood [co. Glamorgan] (84); an anecdote relating to Sir Gilbert Stradling's presence with Richard I at the siege of Acres and the creation of the order of the Knights of the Blue Garter (85); miscellaneous notes relating to Welsh triads and their attribution to fictitious names, the basic reasons for the continued existence of the bardic system of Glamorgan, etc. (87-8); a list of mythological items and persons headed 'Damhegion Beirdd Ynys Prydain' (89); an extract from the poem 'Angar Cyfyndawd' from the Book of Taliesin (91); copies of two 'englynion' by [Edward Williams] 'Iolo Morganwg' (94); a remedy for asthma (95); a list of fifteen faults in metre and 'cynghanedd' which should be avoided by Welsh bards according to the Glamorgan system (98); a list of twelve ? subject or chapter headings under the superscription 'A brief analysis of the Cimbric or Welsh language' being ? the outline of an intended article or booklet on the said subject (101-02); a stanza of Welsh verse by [Edward Williams] 'Iolo Morganwg' (106); a list of nine Welsh manuscript sources, e.g. 'Brut y Tywysogion', 'Brut y Saeson', 'Trioedd Ynys Prydain', under the heading 'Works in hand by Edwd. Williams. Collections for the History of Wales' (107); (continued)

Brief genealogies in direct line of Einion ap Gwalchmai and Bleddyn ab Llywarch (107); a list of Welsh proverbs or proverbial expressions (114, 186, 189, 398); nine stanzas of an English patriotic poem transcribed from the Bristol Gazette of 24 August 1803 (115-16); brief notes relating to inscribed stones in Glamorgan and the bardic 'Cadair Tir Iarll' (126); a brief note relating to Taliesin and the Welsh metres and the retention of knowledge of the ancient principles of poetry, etc., in Glamorgan (129); brief notes on Saint Caradoc (132); a note on the boundaries of Glamorgan (135-6); biographical data relating to Edward Ifan, 1716-98 [Presbyterian minister and poet], with transcripts of two commemorative 'englynion' to him attributed to Wiliam Harri 'o blwyf Penderyn' (142-5; see TLLM, and IM, sub nomine in index and more particularly TLLM, tt. 245-51); a note relating to the probable degree of civilisation prevailing amongst the early Cimmeri (149); a transcript of [Horace's Ode XXII from Book 1] (151-2); brief observations by E[dward] Williams on [Thomas] Gray' s poem '[The] Bard' (156-7); a draft version of six stanzas of English verse and a copy of an ? incomplete 'cywydd' by [Edward Williams] 'I[olo] Morganwg' (160-63); a note relating to the extent of Morgannwg and to the bardic 'Cadair Caerllion ar Wysg' and 'Cadair Dinefwr ag Ystrad Tywy' (170 ); a transcript of a 'cywydd' attributed to Ieuan Tew (173-4); a note on the bardic 'Trwyddedog Nawdd' (177); a brief note relating to Cuneddaf Wledig and his sons in North Wales (183); a draft version of an English sonnet written [by Edward Williams, 'Iolo Morganwg'] in December 1792 (185 + 190); the introductory section of proposed notes on the history of Morgannwg allegedly extracted from a volume formerly in the possession of the Reverend Edward Gamais, rector of St. Athan, and then in the hands of Mr. John Spenser of the same parish (187); notes on the implications of civilisation in social polity, religion, social economy, domestic economy, etc. (192-7); an outline of a 'Letter to Napoleon by E[dward] W[illiams] in the Character of a Quaker', in which he sets out, in nine points, his advice to the recipient and his principles for government, etc. (200-03); notes on the organisation of the bards and bardic system by King Arthur (213 + 218); a list of Latin and English names of trees, grasses, etc., under the headings 'Additions to Turton' and 'Not in Bingley' (214-17); a genealogy showing the descent in direct line of Hu Gadarn (218); a stanza of Welsh free-metre verse by [Edward Williams] 'Iolo Morganwg' (219); sketches of, and notes on,? the ruins of Gwern y Cleppa house [co. Monmouth] (220-22); notes relating to resolutions of the Welsh bardic fraternity in 1798 (235-6); a list of 'Rare plants in Glamorgan' (239 + 244); a notice relating to an advertisement concerning a proposed harbour and tramroad at Newton [co. Glamorgan] headed 'Cambrian, Aug. 11th 1819' (241-2); a list of 'Fish in Glamorgan' (247-8); brief architectural notes relating to Coyty Castle and Coyty Church [co. Glamorgan] (250); a draft of a statement [by Edward Williams, 'Iolo Morganwg'] to the effect that certain authors who had published psalms had borrowed lines or couplets from his psalms and not he from theirs (253-4); a brief note referring to W[illiam] O[wen] P[ugh] and [Owen Jones] 'Owain Myfyr' in a derogatory manner (259-60); notes referring to developments in 'cynghanedd', etc., the Emperor Arthur and the bardic 'dosparth y Ford Gron', the rediscovery by Rhys ap Tewdwr, when in exile in Brittany, of books relating to the said 'dosparth y Ford Gron', the bardic chairs 'Cadair Morganwg', 'Cadair Gereinwg', 'Cadair Caerllion ar Wysg yn Nhir Iarll', 'Cadair Urien Reged', 'Cadair Gwynedd a Phowys', and 'Cadair Marchwiail', and 'Gorsedd Beirdd Ynys Prydain' (266-73); extracts from the Welsh Scriptures, all except one being from the New Testament (274-81); philosophical and religious observations (291-302) ? connected with the inscription 'Hints for an Essay on the Christian prophecies now fulfilling in the world' on p. 290; brief notes relating to 'flag and bastard lias' and 'rag lias' soils, an ancient course or rotation of crops on 'flag and bastard lias strong soils' in Glamorgan, species of wheat ? found in Glamorgan, etc. (310-12); (continued)

A formula for making 'water cement for cisterns, etc., or to plaister walls in houses to keep out water' (313); notes headed 'Farming Calendar, Glam[ organ], from observation', outlining the work to be done in every month of the year (314-17); names of the parts of speech in Welsh and a list of the letters of the Welsh alphabet (333 + 330); a brief note relating to Welsh literature in the Middle Ages (338); a Welsh version of an inscription on a column erected by the inhabitants of 'Môn ag Arfon' to honour Henry William, Marquis of Anglesey, and his heroism whilst fighting in Spain and at the battle of Waterloo (342); a short list of 'Silurian idioms' and 'Deudneudisms' (346); a list of Biblical texts ? containing references to the devil (347 + 352); a copy of what, by inference, was the allegedly concluding passage of the work called 'Cyfrinach Beirdd Ynys Prydain' in which the reputed author, Llywelyn Siôn of Llangewydd, co. Glamorgan [poet and copyist], claims that he extracted his information from various volumes in Raglan Castle [co. Glamorgan] in the possession of Sir William Herbert ('o Lyfrau Lewys Morganwg . . . ag o hen lyfrau eraill yno nid amgen na Llyfrau Edeyrn Dafawd aur'), and a copy of a note attributed to Edward Dafydd stating that the said Sir William had intended setting up a printing press in Cardiff Castle to print the Welsh works ('i brinto'r Llyfrau Cymraeg'), that he had died before doing so, and that Raglan Castle and its library ('a'r cyfan o'r llyfrau') had been set on fire by the followers of Oliver [Cromwell] (349-50); a list of five triads headed 'Trioedd Iaith ag ymadrodd' (353); draft stanzas of Welsh religious verse ? hymns (355); notes relating to metrical feet - 'corfannau cerdd dafod' (367- 8); a brief note on Ceraint Fardd and his contribution to 'cynghanedd' (369); an extract from the Gent[leman's] Mag[azine], December 1795, relating to a brass sword discovered at Buildwas, co. Salop (370); a list of 'Gower villages' (381 + 378); a transcript of a 'cywydd' attributed to Ior[werth] Fynglwyd (385-7); pencil sketches of ? sections of Dunraven peninsula (388 + 390); a brief biographical note relating to Rhydderch ap Ieuan Llwyd of Glynn Aeron (392); miscellaneous stanzas of Welsh free- and strict-metre verse including a 'tawddgyrch cadwynog' attributed to Gwilym Tew 'o Lynn Taf' and two free-metre stanzas by [Edward Williams] 'Iolo Morganwg' (393-6); versions of an 'englyn' in Latin, English, and Welsh, the Latin version bearing the name of Daf. Nicolas (399); an 'englyn' by [ Edward Williams] 'Iolo Morganwg' (399); a twenty-point plan being a 'Sketch of a New System whereon a Religious Society may be formed' (400-09); a list of 'Meteorological observations and adages collected in Glam[organ]' (422-5); brief extracts from the poems of Cynddelw (97, 104, 206), Tudur Aled (133), Rhys Goch ap Rhiccart (138), D[afydd ap] G[wilym] (141), and Ed[mund] Prys (369); and other miscellanea. Pp. 191, 255, 260, 364, 397 contain lines of musical notation being possibly in some instances the airs of tunes. Notes in some instances have been written on the verso or in the margins of the following, pagination in brackets, - an undated ? holograph letter from Thomas Rhys to Edward Williams (seeking aid for H. Walters) (53); a ? holograph letter, 1812, from John Bishop Estlin from Bristol to Thomas John of St. Athan (recipient's eyesight, the writer was sending two pairs of glasses) (71 + 76); an account from Taliesin Williams to Mr. Bradley in respect of cutting letters and painting (87); an incomplete holograph letter from Edwd. Williams to Sir Robert L. Blosse, Bart. (personal) (106); an undated holograph letter from Thos. William from Froom, Sumnerset, to his sister (he was at work 'in this town', his brother [Edward Williams, 'Iolo Morganwg'] could have work 'in the Marble way' at Devizes for fifteen shillings a week) (131 + 140); a copy of a printed prospectus advertising a proposed new edition of poems by Charles James (147-8 and two unnumbered pages between p. 154 and p. 155); a copy of a printed circular from John Walter from Piccadilly, 1790, offering his services as an agent at the approaching General Election (150 + 153); a note in the third person, January 1815, from Dr. Prichard inviting Mr. Williams and his son to dinner (158); a copy of a printed account of the receipts and payments of the Cymmrodorion Society on behalf of the churchwardens and parishioners of the parish of Trefdraeth, co. Anglesey, in their suit, 1769-1773, against Dr. Bowies, rector of the parish, concerning the legality of presenting non Welsh-speaking incumbents to livings in Wales (two unnumbered pages between p. 204 and p. 205 and two unnumbered pages between p. 210 and p. 211); an incomplete draft of a petition from Edward Lloyd, schoolmaster, to persons in the town and vicinity of Neath, recounting his war service, 1756-1763, on board H.M.S. Trident (212 + 2190); a receipt, 8 February 1794, from J. C. Matthews [bookbinder] to Mr. Williams [? Edward Williams, 'Iolo Morganwg'] for sixteen shillings received by the hand of Mr. Bingley 'for 100 Setts Poems', and a note from W. Bingley to [? Edward Williams] relating to the said account and 'your other binders bill' (234 + 237); a copy of printed proposals for publishing Edward Williams's two volumes of English poems Poems Lyric and Pastoral (263-4, 290 + 309); and a copy of printed proposals for publishing in monthly parts Hanes Bywydau, Dioddefiadau, a Marwolaethau y Merthyron Cristianogol translated from the English martyrology of [John] Fox[e] with other additional material (327 + 336).

Letters, notes and poems (autograph and copies) and a sermon on I Cor., xi, 28 by Goronwy Owen; and 'Trioedd Taliesin' in the autograph of Lewis Morris.

A seventeenth century manuscript with a previously loose leaf not forming part of the original manuscript bound in at the end. Ff. 1-125 contain a corpus of Welsh verse and prose items mainly of a vaticinatory nature which, according to a holograph note on f. 125 recto, were transcribed by Thomas ab Ieuan, the scribe of NLW MSS 13061-13063B and 13085B, in 1674 ('Yma y diwedda y llyfr hwn a ysgrifenna[is] i Thomas Ieuan o Dre'r brynn pan oedd [oed] krist 1674 . . .'; see also TLLM, t. 171). Included are 'cywyddau' by Robin Ddu (5), Rhys Nanmor, Dafydd Gorlech, Iolo Goch (2) and others (ff. 1-50 verso); verse or prose items by, or attributed to, Myrddin Wyllt, Myrddin Emrys, Taliesin, Ieuan Drwch y Daran, Adda Fras, Rhys Nanmor, Robin Ddu and others, and including, inter alia, 'Prophwydoliaeth yr Eryr mawr or glyn yng wynedd', conversations between Myrddin and his sister Gwenddydd, a sequence of twenty-one stanzas each commencing with the words 'Koronog faban . . .', a poem commencing 'Gwyr Môn a arganfyddant oi ar yn penryn', versions of the prophesies usually known as 'Prophwydoliaeth y Lili' and 'Prophwydoliaeth y Wennol', and a version of the five dreams of Gwenddydd and their interpretation by her brother Myrddin (see R. Wallis Evans: 'Pum Breuddwyd Gwenddydd', The Bulletin of the Board of Celtic Studies, vol. XII, pp. 19-22) (ff. 50 verso-107 recto); and further poems, including 'cywyddau' by Robin Ddu (2), Iolo Goch and others, an 'awdl' by Rhys Nanmor, and 'englynion' by Siams Parri (ff. 107 rector-125). F. 126, the previously loose leaf bound in at the end, is in the same hand as the rest of the volume and contains a seven-stanza vaticinatory poem by Thomas ap Ieuan ap Rhys in the poetic form known as 'triban Morgannwg' (see TLLM, tt. 117, 136), etc.

An imperfect manuscript, the greater part of the volume being written in one hand of the ? late sixteenth century. The contents include transcripts of Welsh poems in strict and free metres including poems by Siôn y Kent, Davydd Meifod, Ieuan Kydweli, Davydd aprys 'o Veni', Davydd ab Edmwnt, Lewys y Glyn, Lle'n ap Howel, Phylip Ievan 'o Drerydynok', Ieuan Tew, Iolho Gogh, Davydd ap Glm., Ieuan Duy ap Dd. ap Owen, Howel Dauid ap Ieuan aprys, William Meredith, Ievan aprydderch ab Ieuan Llwyd, Hwel Swrdwal, Ifan Daylwyn, Hyw Karllwyd, Mr. Talhai, 'vickar llangadoc vawr', Tomas Derllys, Dd. Nawmor, Lewys Glynn Kothi, Taliesin Benbeirdd, Siôn Davydd, gwndidwr, Llywelyn ap Gwilim Llygliw, Daio Lliwel, Ieuan ap Rys ap Ll'n, Rys aparri, Syr Dauydd Llwyd, Thomas Brwynllis, Rys Duy, and Dd. Ddy Hiraddi[g]; transcripts of prose items with the following headings or incipits - '[ll]ymma saith llywenydd mayr vorwyn', 'llymma y pymp llywenydd y gafas mayr vorwyn am y mab', 'llymma gynghorau Kattwn ddoe[th ]', 'llymma enway y naw gogyfyr', 'llymma gymmraeg o waith Iolho gogh', 'llymma y saith kwestiwn y vy rwng y saithwyr doythion', 'llymma bymp pryder . . . meyr vorwyn o achos y mab', 'llymma y dec prif dri arbennic val y may Taliessin . . yn dywedyd', 'llymma gas ddynion Selyf', '[lly]mma Vychedd y gardawd', 'llymma gynghorau Taliesin yddy vab', 'llymma yr ymrysson . . . yr enaid ar korff', 'Giltas pen proffwydi y Bryttaniait a ddywait . . .', 'llymma gas bethau Owain Kyvailioc', 'llymma beth o gynghorau Kattwn ddoeth ar Bardd glas or gadair', 'llymma Tri achaws arddec y sydd yn dangos paham y mae iawnach ymprydiaid diwgwener no diwarnod arall', 'Gwyl yr hollsaint a gyfoded o dri achos . . .', and 'llyma yr ystori a venic am ystyr y seren wenwynic . . . a elwir seren y kwn'; Welsh triads and aphorisms; etc.

Miscellaneous papers containing notes, extracts, transcripts, lists, etc., in the hand of Edward Williams ('Iolo Morganwg') bound together in one volume. Pp. 9-62, 68-73, 76- 90, 107-48, 213-20 and various other pages in the volume contain miscellaneous Welsh word lists frequently, but not invariably, with English definitions and illustrative excerpts from the works of Welsh poets. Other items include pp. 63-5, an incomplete 'Cornish - Silurian vocabulary' (words beginning with letter A only); 75, a comparative word list with the superscription 'Peculiarities of the Silurian and Venedotian dialects'; 93-106, a list of popular proverbial and figurative expressions or phrases in Welsh (see IM, t. 389); 149-50, 157-63, lists of Latin proper names, common nouns, etc., largely connected with ancient Gaul; 153- 6, 165-208, a French - English vocabulary with Welsh cognates of the French words; 221-30, a Cornish - English vocabulary with the superscription 'Borlace Vocabulary' [probably transcribed from, or based upon, the vocabulary to be found in William Borlase: Antiquities, Historical and Monumental, of the County of Cornwall . . . (1754, 2nd ed. 1769)], with Welsh cognates of the Cornish words; 236, 'Some Names of Rivers in Glamorganshire'; 237, a copy of a poem attributed to Taliesin; 240, notes headed 'Names of Mountains'; 241-2, notes headed 'Appelative Name of Watter', and 'Proper Names of Rivers'; 251-8, a collection of Welsh proverbs arranged alphabetically according to the initial letter (incomplete, G-Y only); 260-61, a Welsh poem by Edward Williams; 262, a list of 'Silurian words agreeing with Armoric'; 273-4, two lists with the headings 'Books and MSS. useful towards the History of Cardiff', and 'Hints and Materials for the History of Cardiff' respectively; 281-2, a copy of a thirty-eight stanza anti-Puritan poem entitled 'Cân i Ladron Morganwg' attributed to 'Jenkin Rhichards o Flaenau Gwent' and dated 1646 (for an assessment of the historical evidence presented in this poem see Thomas Richards: A History of the Puritan Movement in Wales (London, 1920), p. 211, and the same author's Religious Developments in Wales, 1654-1662 ( London, 1923), pp. 191-4, and for doubts as to its authenticity IM, tt. 254-63); 283-4, a transcript of a letter from [the Reverend] Edw[ar]d Gamage [from St. Athan] to Llywelyn [ab Ifan] 'o'r Cannerw', undated (replying to a request for the names of books for the study of the Welsh language, observations on differences between the dialects of Glamorgan and North Wales, a suggestion that a scholarly, bardic language be formed from the best elements in all regional dialects) (for a holograph copy of a letter from Edward Gamage to Llywelyn ab Ifan see NLW MS 13077B and for transcripts by Edward Williams of letters from, or allegedly from, Gamage to the same recipient in addition to the present example see NLW MSS 13095B, 13100B; for observations on these letters and the dubious authenticity of the Williams transcripts see IMCY, tt. 58-60, TLLM, tt. 107, 195, and IM, tt. 245-6); 285, a copy of an 'englyn' descriptive of a silkworm and 'composed of vowels'; 291, an incomplete transcript of [Thomas] Gray's 'Ode on the Pleasure arising from Vicissitude'; 295-8, a chronicle of events in British-Welsh history, 1076-1110; 299-300, notes on the Welsh bardic order with references to [James] Macpherson's theories about the druids and bards and a comment on his Fingal poem; 302, extracts from the Universal Magazine of Knowledge and Pleasure, 1768; 303-04, a transcript of [Taliesin's poem] 'Gwaith Argoed Llwyfain' with an English translation thereof by W[illia]m Whitehead (see Edward Jones: Musical and Poetical Relicks of the Welsh Bards . . . (1784), pp. 5-6); 307-10, an English translation of the title-page of Theophilus Evans: Drych y Prif Oesoedd . . ., ail arg. [1740], and of pp. 107-10 of the text of the work; 315-16, a copy of a letter from 'Christopher Crabstick', servant of Mr. Windham [Thomas Wyndham of Dunraven Castle, co. Glamorgan], to Captain Wind[s]or [Captain Thomas Windsor, R.N.), undated (a satirical attack on recipient's decision to offer himself as a candidate in the parliamentary election for the county of Glamorgan [?1789]); 323, draft copies of an election song to accompany the preceding item; 317-20, brief notes on the topography, agriculture, mineral wealth, etc., of the three main divisions of Glamorgan; 321-2, an advertisement for a proposed history of the town of Cardiff and lordship of Glamorgan; 326, a copy of the proposed title- page of Edward Williams's intended 'History of the Ancient British Bards or Druids' to be published in 1795; 327-30, notes on Welsh poetic metres ('Am gysefin ansawdd y mesurau') and on bardic ceremonial ('defodau . . . wrth gynnal gorsedd'); 333-4, prose items with the superscriptions 'Casbethau serchog', 'Llyma lythr anfon serch o waith D.G. o lyfr Ovydd', 'Dewisbethau serchog o lyfr Ofydd', and 'Casbethau Eiddig'; 335-6 two sequences of stanzas (twenty-one and twenty-four respectively) of Welsh prophetic verse with each stanza commencing with the words 'Coronog faban . . .', the first sequence being taken, with revised orthography, from Thomas Pugh: Brittish and Out-landish Prophesies . . . (London, 1658) [pp- 47-51, 37-8] (for the text of both sequences see Iolo Manuscripts . . ., pp. 276-82); 337-8, an incomplete copy of a Welsh poem describing the county of Glamorgan, its towns, etc. (for the missing portion, i.e., stanzas 1-30, see Iolo Aneurin Williams MS 97 in the National Library of Wales); 339-40 transcripts of two 'cywyddau' attributed to Ieuan ap Hywel Swrdwal and Gruff. ap Ieuan ap Llywelyn Fychan; 341-2, a transcript of a letter in Welsh from the poet Gronw Owen from Donnington, co. Salop, to William Elias, 1751 (for the text of this letter and notes on problems relating thereto see J. H. Davies (ed.): The Letters of Goronwy Owen . . . (Cardiff, 1924), pp. 3-4, 203-04); 343-5 medical maxims in Welsh; and 347-8, transcripts of 'englynion' by Wm. Llyn, H[uw] Llyn, and Edward Morris. Also included are miscellaneous notes on bardic, literary, and historical matters, etc.

A composite volume containing transcripts, in the hand of Edward Williams ('Iolo Morganwg'), of miscellaneous Welsh poems, being mainly strict-metre verse and including pp. 11-37, poems by, or attributed to, Taliesin; 39-65, the 'Gododdin' of Aneurin; 67-163, poems by, or attributed to, Taliesin, Myrddin, Llywarch Hen, Gruffudd ap Maredydd ap Daf., Dafydd Benfras, Llewelyn Goch vap Meurig Hen, Madawg Dwygraig, Trahaearn Brydydd Mawr, Howel Ystoryn, Iolo Goch, Gronwy Ddu, Gwilym Ddu 'o Arfon', Thomas Llewelyn 'o rygoes', Morgan Powel 'o Lanhari', Llewelyn Siôn 'o Langewydd', Gronwy William, Syr Dafydd Llwyd Llewelyn, Ellis Ellis, D. ab Gwilym, Gruff. Gryg, D. ab Edmwnt, William Morris, William Elias, Hywel Dafydd ap Ieuan ap Rhys, Thomas Prys, Siôn Tudur, Gruff. ap Daf. ap Tudur, and Wm. Cynwal; 167-89, a collection of 'cywyddau' by, or attributed to, Dafydd ap Gwilim; and 189-241, poems by, or attributed to, Morgan ap Hugh Lewis, ? Rhys Goch 'o glyn-ceiriog', Bedo Aurddrem, Gr. ap In. ap Lln. Fychan, Syr Dafydd Owain, Madog Benfras, In. ap Gruff. Leiaf, Huw Arwystli, Lewis Menai, Syr Clement, Rhys Goch 'o'r yri', Lewis Glyn Cothi, Gruff. Llwyd ap Han, ?Gruff. Llwyd ab Dafydd ab Einion Lygliw, and Lewys Morganwg, and further poems by, or attributed to, Aneurin, Taliesin, Siôn Tudur, Iolo Goch, Gruffydd Grug, Dafydd ap Edmond, and Dafydd ap Gwilym. Pp. 165-6 contain a list of two hundred and forty-six 'cywyddau' attributed to D[afydd ap] G[wilym]. For poems in this volume attributed to Dafydd ap Gwilym but probably written by Edward Williams, and for couplets or sections of poems probably written by Edward Williams and inserted in, or added to, poems by Dafydd ap Gwilym see the relevant sections of IMCY.

A composite volume containing miscellaneous material in the hand of Edward Williams ('Iolo Morganwg') including pp. 9-34, a short treatise on the Welsh bardic order, its organisation, ceremonies, etc., with the superscription 'Llyma Lafar Gorsedd Beirdd Ynys Prydain . . sef ydyw hynny son Defodawl am Freiniau a Defodau Beirdd Ynys Prydain fal y bu gynt yn Amser y Prifeirdd a Thywysogion y Cymry . . .', being allegedly a transcript of material extracted by the Glamorgan scribe Llywelyn Siôn of Llangewydd from a manuscript in Raglan Castle (for the Welsh text see Iolo Manuscripts . . ., pp. 49-62, and for an English translation ibid., pp. 430-48); 39-42, notes with the superscription 'Llyma Lyfr y Barddas sef Derwyddoniaeth Beirdd Ynys Prydain . . . ac ynghyntaf y mae Traethawd hawl ag atteb Bardd ac awenydd o waith Siôn y Cent. . .', being apparently a transcript of the first section of an essay or treatise on aspects of Welsh bardism allegedly compiled by the aforementioned Llywelyn Siôn from sources at Raglan ('llyfrau . . . yng gellawl rhaglan') (for text and trans., see John Williams: Barddas . . ., vol. I, pp. 224-35); 49- 76, 89-91, 154, 166-70, 177-80, 200-09, 212-14, notes on the special alphabets, 'The Bards' Alphabet' and 'The Monks' Alphabet', which [according to Edward Williams] had been in use amongst the Welsh bards and monks, the practice of inscribing these on wooden surfaces, the 'peithynen ', i.e. the term used to denote a series of four-sided 'billets' or pieces of wood used as a writing surface on which to inscribe words or compositions in the bardic alphabet and inserted in a wooden frame, the mythological account of the origin of the first alphabet devised by human beings, the acquisition of the knowledge of the alphabet by the nation of the Cymry, etc. (for similar material see NLW MS 13093E above); 97-111, 'A Short Account of the Welsh Bards' including a list of ?twenty-two of the 'leading maxims and doctrines of Bardism'; 123-51, further notes on the history, organisation, ceremonies, etc., of the Welsh bardic order; 155-65, lists purporting to contain examples of the following alphabets - 'Gallicum vetus' (extracted from [J.] Mabillon: De re diplomatica . . .), 'Runic', 'Gothic Alphabet of Ulphilas' Gospels', 'Etruscan' (from one of the works of [A. F.] Gori), 'Ancient or Pelasgic Greek characters', 'Romano-British of the 5th Century' (from 'monumental stones at Lantwit Major, Glam[organ]'), 'Bards' Alphabet', 'Monk' Alphabet', 'Saxon Alphabet', etc.; 185-9, ? extracts from Ole Worm: [Runir] seu Danica Literatura antiquissima . . . (Hafniae, 1636); 191-5, transcripts of a 'cywydd' by, or attributed to, Gutto'r Glynn, and 'englynion' by, or attributed to, D[afydd] ab G[wily]m, and extracts from the works of various Welsh bards; 239-63, 'An Account [of] the British Bards and the Bardic or Druidic Mythology and Theology'; 267-76, notes on ceremonial procedure, etc., at bardic meetings; 283-314, a copy of an English poem described as an 'Ode on the Mythology of the Ancient British Bards in the manner of Taliesin. Recited at a Congress of Ancient British Bards assembled on Primrose Hill near London, Sepr. 22d, 1792 . . .', with an introductory 'advertizement' describing the bardic or druidic order, and copious notes on the text (for this poem, with slight textual variations and a variant version of the introductory 'advertizement', see Edward Williams: Poems Lyric and Pastoral . . . (London, 1794), Vol. II, pp. 193- 216); and 325-34, miscellaneous notes and extracts relating to the religion of ancient Gaul, the druids, etc.

A volume of notes in the hand of Edward Williams ('Iolo Morganwg') bearing the inscription 'History of the British Bards. Common Place Book. No. IV. By Edward Williams . . .' on the 'title-page'. Pp. 2- 11, 32-61, 70-103, 112-25 contain the text of an essay on various schools of Welsh poetry which, under the title 'History of the British Bards' and with the subtitles 'Primitive School', 'School of Taliesin', and 'School of Gruffudd ap Cynan alias of Glynn Achlach', was subsequently published in The Cambrian Journal, 1858, pp. 161-9, ibid., 1859, pp. 10-29, 132-41, 241-55, and ibid., 1860, pp. 7-21. Pp. 12-24 contain extracts from, and abstracts of sections of, two letters from Sharon Turner to the Reverend John Brand as secretary of the Society of Antiquaries which, under the headings 'An Inquiry respecting the early use of rhime . . .' and 'A further inquiry respecting the early use of rhime ...', were published in Archaeologia or Miscellaneous Tracts relating to Antiquity, vol. XIV, 1803, pp. 168-204. These extracts, etc., were published in The Cambrian Journal, 1858, pp. 353-63 being inserted there as a section of the aforementioned essay entitled 'History of the British Bards'. Pp. 26-7, 62-5, 126-31, 192- 203, 232-3 (each page headed 'Alphabet Bards. Allusions to') contain couplets or longer extracts from the works of Welsh poets, these apparently being presumed to contain references to the bardic practice of writing on wooden surfaces using the special alphabet allegedly used by the Welsh bards (see the preceding manuscript No. 13107B) or words and phrases whose metaphorical use reflected such a practice. The contents of other pages include p. 28 (headed 'Hu Gadarn'), two couplets of Welsh verse relating to Hu [Gadarn]; pp. 66-9 (each page headed 'Bards Discipline Miscellaneous'), extracts from the works of Welsh poets, etc., relating mainly to the bards of Tir Iarll; pp. 104-05, notes under the page headings 'Preface to the History of the Bards, Collections for' ( these notes also appear in The Cambrian Journal, 1860, pp. 10-11, as part of the abovementioned essay on the Welsh bards although they obviously do not form part of the narrative of the text of that essay); pp. 132-6 (each page headed 'Schools of Welsh Poetry [Primitive School]'), further observations relating to the primitive school of Welsh poets, its survival in Glamorgan until the seventeenth century, and the foundation of a new school of poets beginning with Rhys Goch ap Riccert, circa 1130, 'in the Silurian district of Wales'; pp. 137-43, blank except for page headings as in pp. 132-6; pp. 150-51, each page headed 'Ossian', otherwise blank; pp. 180-83 (each page headed 'Alliteration'), a note on the definition of the word alliteration, an analysis of an example of alliteration in English verse, examples of its use in 'Caedmon's Paraphrase on Genesis', and a brief note on its use by Saxon poets and its introduction into Welsh poetry; pp. 204-15, each page headed 'Institutes and customs alluded to', otherwise blank; pp. 216-23 (each page headed 'Mythologies'), a triad relating to the proper name Menw on p. 216, otherwise blank; and pp. 240- 41, each page headed 'Inquiries Miscellaneous', otherwise blank. On a 'fly- leaf' at the beginning of the volume are sketches of five musical instruments surrounded by a number of circles containing the names of grades of Welsh bards and musicians extracted 'from a MS. in the Havod Library, 1790'.

A composite volume containing miscellaneous material in the hand of Edward Williams ('Iolo Morganwg'). The contents include p. 1, a copy of a proclamation announcing the holding of an 'eisteddfod' at Caerwys, co. Flint, in the year 1523; 2-26, extracts from, or versions of, the statutes for regulating the organisation and conduct of Welsh bards and musicians associated mainly with the name of Gruffudd ap Cynan; 26-35, a series of triads with the superscription 'Llymma Drioedd Gruffudd ap Dafydd Ychan'; 39-43, a copy of an 'Awdl perthynol i'r Rhyfel bresenol ag America' attributed to I[orwerth] ap G[wilym]; 49-60, transcripts of two Welsh poems attributed to Llywarch Brydydd y Moch and Cynddelw Brydydd, three 'englynion' from 'Llyfr Hir Llanharan', and an 'englyn' attributed to Siôn y Cent; 65-94, transcripts of miscellaneous Welsh verse including a series of twenty-two stanzas with the superscription 'Llyma'r Englynion a fu rhwng Trystan ab Tallwch a Gwalchmai ab Gwyar . . . ', 'Casbethau Arthur', stanzas from the 'Black Book of Carmarthen' attributed to Taliesin, a sequence of twenty-seven stanzas ('Gwasgargerdd Merddin yn ei Fedd') attributed to Myrddin ab Madawg Morfryn, a 'marwnad' attributed to Gruffydd Llygad gwr, a four-line 'darogan' attributed to Peredur Fardd, thirty stanzas from the 'Red Book of Hergest' entitled 'Ymatreg Llywelyn a Gwrnerth', forty-four stanzas with the superscription 'Tribanau yr Eiry Mynydd ar y mesur a elwir yr Hen Driban' attributed to Mab claf ab Llywarch or Llywarch Hen, and a further series of twenty stanzas with the superscription 'Llyma Englynion Eiry Mynydd eraill . . .' attributed to Ystyffan Bardd Teilo or Talhaiarn; 97-101, a list of the twenty-four traditional Welsh accomplishments ('Y Pedair Camp ar hugain'); 103-24, transcripts of 'cywyddau', etc., attributed to Bedo Philip Bach, Howel Dafydd ab Ieuan ab Rhys, Gr. Hiraethog, Siôn Mawddwy, Dafydd ap Gwilym, Trehaearn Brydydd Mawr, and Gutto'r Glynn, and of a series of 'englynion' to commemorate the year of accession of every English monarch during the period 1067-1558, these last being attributed to Berud ap yr Ynad Coch, Bleddyn Ddu, Cynddelw Brydydd Mawr, Llywelyn Fardd, Dafydd y Coed, Harri Haram Param, Llefot Wynebcolawr, Cyssymdaith Llefot Wynebcolawl, Mabwaith Hengrys o Ial, Llygad Gwr, Llywelyn ap Hywel Wrnerth, Gwilym Ddu 'o Arfon', Dafydd Bach ap Madoc Gwladaidd, Hywel Ystorun, Daniel Llosgwrn Marw, Dafydd Eppynt, Ieuan Brydydd Hir, Bleddyn ap Ieuan Hen, D. ddu, Ierwerth Fynglwyd, Rhys Nanmor, Hywel ap Bleddyn Mathew, Owain y Bardd 'o Wynedd', and Huw Arwystli; 129-35, a list of mainly Welsh authors who had written about the island of Britain ('am holl ynys Brydain') and of Welsh bards who had written of the three regions of Wales ('tair talaith Cymru'), etc.; 137, receipts for making ink; 138-9, transcripts of the Lord's Prayer in Welsh as versified by Dafydd Benwyn, and of 'englynion' attributed to Thos. Llen. 'o Regoes', Daf. o'r Nant, and Iolo Morganwg; 140-50, a transcript of a letter from Dafydd Tomas from Pandy'r Ystrad to Dafydd Rhys touching upon the course of the Reformation and the rise of Nonconformity in Glamorgan and mentioning Rhawlins White, Siôn Penri, William Erbri, and Walter Cradoc, and a translation of the Bible into Welsh by Tomas Llywelyn 'o Regoes' (the text of this letter was published in L. J. Hopkin James and T. C. Evans: Hen Gwndidau, Carolau, a Chywyddau . . . (Bangor, 1910), pp. 207-13; for doubts as to its authenticity and the opinion that it was composed by Edward Williams himself see TLLM, tt. 127, 245); 151-3, an anecdote relating to Gwilym Hir Saer and three stanzas in the 'triban' measure attributed to him; 154-64, two versions of 'Dengair Deddf y Beirdd' or 'Dengair Deddf Beirdd y Cymry' (published in James and Evans: op. cit., pp. 199-207); 165-74, a transcript of a letter from Dafydd Nicolas ? of Aberpergwm from Glyncorrwg to Edward Han of Aberdar, 1754, in which the writer gives his views on the relative merits of Welsh strict- and free- metre verse (the text of the letter was published in Taliesin . . ., cyf. I, 1859-60, tt. 92-5; for doubts as to its authenticity and an opinion that it was composed by Edward Williams himself see TLLM, tt. 241, 290-92); 175-6, a short chronicle of events in Welsh history, 1221-1419; 177-216, transcripts of Welsh poems attributed to Howel ab Owain Gwynedd, Casnodyn Fardd, ? Cynddelw, ? Teulu Owain Cyfeilyawc, Prydydd y Moch, Meilir Brydydd, Bleddyn Fardd, Llywelyn Fardd, Taliesin, Rhobin Ddu, Y Bergam o Faelor, Ieuan Trwch y Daran, D. ab Edmund, Ieuan Tew Hen, and Lln. ap Guttun, and miscellaneous extracts; 217, a copy of the prophecy of Friar Bacon ('Prophwydoliaeth y Brawd a elwid Ffreier Bacon'); (continued)

218-21, miscellanea including transcripts of two 'englynion' attributed to Sir Huw Dafydd and Thomas Powel, and a list of the cantrefi and cymydau of Morganwg 'ex Havod MS.'; 222-4, miscellaneous domestic and medicinal recipes; 243-5, a copy of a foreword reputedly written by Benjamin Simon in 1754 to a collection of the poems of Dafydd ap Gwilym; 246-52, transcripts of Welsh poems attributed to Ieuan Tew o Gydweli and Edward Llwyd; 253-5, a list of castles in Britain ('Caerau Ynys Prydain sef y Prif Gaerau'); 255-69, transcripts of miscellaneous 'englynion', three triads, and poems attributed to Siams ab Harri 'o Euas' and Gruffudd ap Ieuan ap Llywelyn Fychan; 270-87, transcripts of series of 'sayings', proverbs, triads, etc., with the superscriptions 'Saith gamp a ddylai fod ar wr', 'Saith ymofynion a'u hattebion', 'Geiriau Gwir Cattwg Ddoeth', 'Gorddodeu Cattwg ddoeth', 'Gorddodeu'r Hen Gattwg o Ial', 'Synnidau Cattwg Ddoeth', 'Trioedd amrafaelion', 'Diarhebion amrafaelion', 'Diarhebion Cenhedlig a Lleol', 'Llyma Ddiarhebion Tymmor a Thywydd', and 'Diarhebion Meddygol'; 287-95, a sequence of fifty-three stanzas entitled 'Englynion yr Eira Gwyn ar Ddiarhebion'; 296-323, transcripts of miscellaneous Welsh prose and verse items including prose items headed 'Llyma wyth llawenydd y Nef', 'Llyma Rinwedd y Ceiliog', 'Cas Betheu gan Dduw', 'Wyth o Drioedd', 'Naw Gradd yr Awgrym', 'Naw gradd Carrenydd', 'Llyma y pum achos sydd i gadw achau', 'Nodau Rhifyddiaeth yr Hen Gymry', 'y Llythyrenau Cymreig Hen a Newydd', 'Tri chynghor a roddes Iesu Grist iddei Ganlynwyr', 'Enwau Ynys Prydain a'i Rhag ynysoedd a'i chaerydd', and 'Hwedl Rhitta Gawr', 'englynion' attributed to Dafydd Benwyn 'o Forganwg', Edward Dafydd 'o Fargam', and Ieuan Gethin ab Ieuan ab Lleison, twenty-six stanzas attributed to Rhys Llwyd Brydydd 'o Lanharan', and verse attributed to Merddin Emrys, Taliesin, and Goronwy Owain; 324-438, transcripts of Welsh poems, mainly 'cywyddau', attributed to Iolo Goch, Gwilym ab Ieuan Hen, Rhys ab Cynfrig Goch, Dafydd ab Edmwnd, Iorwerth Fynglwyd, Thomas Llywelyn, Lewys Môn, Rhys Nanmor, Huw Cae Llwyd, Rhys Goch 'o'r Eryri', Siôn Philib, William Llyn, Rhisiart Fynglwyd, Rhys Llwyd ab Rhys ab Rhisiart, Meredydd ap Rhys, Ieuan Du'r Bilwg, Siôn y Cent, Ieuan Cae Llwyd, Tudur Aled, Syr Owain ab Gwilym, Owain Gwynedd, Taliesin, Dafydd Llwyd ab Llywelyn ab Gruffydd 'o Fathafarn', and Siôn Mowddwy; 439-42, transcripts of items with the superscriptions 'Gweddi Talhaearn . . .', 'Y Deuddeg Prif Gynnegolion . . .', 'Llyma Bennill Cadair Gorsedd Alban Arthan', 'Llyma Weddi'r Orsedd', and 'Cylch Byd a Bywyd', and examples of the strict metre known as 'gorchest y beirdd'; 459-95, transcripts of poems attributed to Dafydd ap Gwilym and some unattributed poems; 555-65, three sequences of stanzas (16, 13, and 8) with each verse commencing 'Coronog Faban' attributed to Aneurin Gwawdrydd or Gildas ap y Caw, Jonas Athraw Mynyw, and Rhys Goch 'o Eryri', with comments on the three series; 566, transcripts of four stanzas of Welsh strict-metre verse attributed to Rhys Llwyd and Iorwerth Fynglwyd; 571-86, a version of the statute relating to Welsh bards and musicians associated with the names of Gruffudd ab Cynan and Bleddyn ab Cynffyn; 587-9, notes relating to an 'eisteddfod' held by Rhys ab Gruffydd in Cardigan and rules formulated relating to the bards and 'eisteddfodau'; and 590-626, transcripts of miscellaneous Welsh prose and verse items including notes headed 'Llyma fal y dychre Dosparth ar Gelfyddyd cerdd dafawd yn Llyfr Iago ab Dewi', series of triads with the superscriptions 'Llyma Drioedd o hen Lyfr Tre'r Eos', 'Llyma Drioedd Gwilym hir, saer Hopkin ap Thomas ab Philip', and ['Trioedd] o Lyfr y Dr. Williams o Gaernarfon', Welsh poems attributed to Taliesin, Iorwerth Beh, Mabclaf ab Llywarch, and ? Daniel Llosgwrn Mynyw, a version of the bardic statute associated with the name of Gruffudd ap Cynan, prose items with the superscriptions 'Llyma Gasbetheu Doethion Rhufein', 'Dewisa Gwr nid amgen', 'Saith rhodd yr Yspryd Glan', 'Llyma Ddewisolion Dafydd Maelienydd', and 'Dewisolion Hywel Ystoryn', and an anecdote relating to Huw Llwyd Cynfel, brother of Morgan Llwyd 'o Wynedd'.

A volume containing miscellany of prose and verse items in the hand of Edward Williams ('Iolo Morganwg'), divided into three sections each described on its 'title-page' as 'Brith y Coed sef cynnulliad cymmysg o hen Bethau Cymreig Rhyddiaith a Phrydyddiaeth Cynnulliad Iolo Morganwg'. These three sections are numbered Rhifyn 1, 11, 111 respectively. The contents of section 1 (pp. i-viii, 1-153) consist of miscellaneous items including notes on the three bardic brothers Ednyfed, Madawc (Benfras), and Llywelyn ap Gruffudd of Marchwiail [co. Denbigh] (11), copies of versions of the dedicatory epistle to Richard Mostyn and the letter to the reader which Gruffudd Hiraethog composed as introductory material to his booklet or volume 'Lloegr drigiant ddifyrrwch Brytanaidd Gymro' which contained, inter alia, his collection of Welsh proverbs (see D. J. Bowen: Gruffudd Hiraethog a'i Oes (Caerdydd, 1958), tt. 32-7) (33-42), a list of old Welsh words extracted from the aforementioned booklet (37), a copy of Simwnt Vychan's licence as 'pencerdd' granted at the Caerwys eisteddfod, 1567 (42- 3), miscellaneous Welsh proverbs (44-5, 72), a list of fifteenth and sixteenth century Welsh bards with the names of their burial places (59-62 ), an anecdote relating to Siôn Mowddwy (64), a copy of the marriage vow ( Welsh) in force in the time of Oliver Cromwell (73), a brief note on the orthography of the 'Black Book of Carmarthen' (73), medicinal recipes (74- 5), a description of a traditional Glamorgan game called 'Chware cnau mewn Llaw' (see IM, tt. 51-2) (76), anecdotes purporting to give biographical data re Dafydd ap Gwilym (77-85), an anecdote relating to Rhisiart Iorwerth 'o Langynwyd' incorporating an 'englyn' attributed to him (86-7), an anecdote re the imprisonment of people in Cardiff gaol for their religious views in the reign of Mary [Tudor] (93-6), an anecdote re a meeting of poets at Ystrad Ywain [co. Glamorgan] in 1720 (98), a note relating to Llywelyn Bren Hen (100), a brief pedigree of the Abermarlais family (101), a list of Welsh proper names derived from Latin (105-06), a note on 'cerdd gadair' and 'cerdd deuluaidd' (107), a series of triads entitled 'Trioedd y Cybydd' (117-20), a few triads with other miscellanea ( 132-3), a note on violent winds near Ruthyn [co. Denbigh] in 1628-1629 (137-8 ), an extract from a letter from John Lloyd ap Huw to Edward Llwyd of the [Ashmolean] Museum [Oxford], 1698, concerning the location of certain ' cistiau' and stone circles (138-9), a note on Tudur Aled with a list of bards licensed at an 'eisteddfod' held at Caerwys in 1565 (150-51), and an anecdote relating to Tomas Llywelyn 'o Regoes' (152); prose items, lists, etc., with the superscriptions 'Llyma enwau Pedwar Marchog ar hugain Llys Arthur . . .' (1-10), 'Llyma enwau Arfau Arthur' (10), 'Llyma Enwau llongau . . . Arthur' (10), 'Casbethau Cattwg Ddoeth' (16), 'Enwau y Pedair camp ar hugain (24 accomplishments) a'r achos y gwnaethpwyd hwynt' (17-19), Pedwar Marchog ar hugaint oedd yn Llys Arthur . . .' (20-23), 'Cynghorion Ystudfach fardd' (27-8), 'Cyngor Taliesin . . . i Afawn ei Fab . . .' (46), 'Llyma achau a Bonedd rhai o'r Prydyddion' (49), 'Ymryson yr Enaid a'r Corph yr hwn a droes Iolo Goch o'r Lladin yng Nghymraeg' (65-70 ), 'Naw Rhinwedd y gofyn Duw gan Ddyn' (70-71), 'Graddau Carennydd' (92), 'Coffedigaeth am ladd y Tywysog Llywelyn ap Gruffudd . . . ' (130-31), 'Y Saith Veddwl teithiol' (134-5), 'Llyma saith Rhad yr Yspryd Glân' (135), 'Llyma'r . . . saith Bechod marwol' (135), 'Llyma saith weithred y drugaredd' (135), 'Llyma Weddi y Pader' (136), 'Enwau y nawnyn a diriwys yn gyntaf yn Fforest Glynn Cothi' (142-3), and 'Chwe peth a ddifa Lloegr' (148); and transcripts of Welsh poems in strict and free metre, often single 'englynion', including poems attributed to Rhys Goch Eryri (12), Thomas Llywelyn 'o Regoes' (12,141), Gruffydd Hiraethog (13), Simwnt Fychan (? 13, 109), Bleddyn ddu (13), Dafydd Benwyn (13), Richard Hughes ( 14, 116), Wm. Llyn (14), Elis Wynn 'o blwyf Llanuwchlyn' (15), Taliesin Ben Beirdd (23, 90-91, 104), Ystudfach fardd (23-6), Thomas Gruffudd (32), Llen. Deio Pywel (46), Llywelyn Siôn 'o Langewydd' (47-8), Hopcin ap Thomas ap Einon 'o Ynys Dawy' (50), Gytto'r Glynn (55), Thomas Glynn Cothi (57-8), Tomas Lewys 'o Lechau' (63-4), Morys Dwyfech (72), Twm ab Ifan ab Rhys (87-8), William Dafydd 'o Abercwmyfuwch' (88-9), Siôn y Cent (97, 112- 14), Dafydd ap Gwilym (99, 108), Edward Richards (108), Revd. Mr. Davies, Bangor (108), Tudur Aled (109), Edward Maelor (109), Rhys Cain (110, 115), Dafydd ap Siancyn Fynglwyd (110), Roger Cyffin (110), Siôn Tudur (110), Syr Huw Dafydd 'o Euas' (111), Ieuan Brydydd Hir 'o Lanyllted' (111), Thomas Powel 'o Euas' (111), Dafydd ab Edmwnd (114), Rhisiart Iorwerth (115), Syr Ifan, 'offeiriad Carno' (115), Matthew Owen (115), ? Huw Morys ( 115), Rhisiart Philip (115), Cynddelw Brydydd Mawr (116), Seisyllt Bryffwrch (116), Dafydd Nanmor (131), Iago ab Dewi (140), Llywelyn Tomas ( 141), and Rhobin Ddu 'o Fôn' (143-8), a sequence of fifteen stanzas called 'Araith y Gwragedd' (29-32), a sequence of 'Englynion y Misoedd' attributed to Syppyn Cyfeiliog or Cneppyn Gwerthrynion reputedly 'o Lyfr Ysgrif yn llaw'r Dr. Dafis o Fallwyd' (121-4), and a sequence of thirty-two 'Englynion yr Eira' attributed to Macclaff ap Llywarch (125-30). (continued)

Section 2 (pp. 161-312) contains miscellaneous items including a note relating to Morgan Llywelyn ? 'o Regoes' (170), a short list of Welsh bards who had acted as bardic teachers to other bards (198), miscellaneous genealogical and chronological data (220-21), lists of Welsh bards 'yn amser y Clymiad cyntaf ar Gerdd', 'yn yr ail clymiad Cerdd', and 'yn amser y trydydd Clymiad ar Gerdd' (225-32), a copy of an introduction written by [Edward Williams] 'Iolo Morganwg' in 1800 to a proposed booklet to be called 'Gwern Doethineb' containing ? extracts from miscellaneous Welsh manuscript sources (268-70), a brief chronicle of events in Welsh and British history to 1318 A.D. (275-9), a further brief chronicle of events in Welsh and British history to 1420 A.D. (280-300), and a third brief chronicle of such events to 1404 A.D. (301-03); prose items or lists with the superscriptions 'Henaifion Byd' (171-5), '14 Prif geinciau Cadwgan a Chyhelyn' (186-7), 'Llyma Ddosparth Cerdd Dant' (211-14), 'Llyma enwau y pedwar mesur ar hugain Cerdd dant' (214-15), 'Llyma y saith mesur ar hugain' (215-16), 'Llyma Lyfr a elwir Cadwedigaeth Cerdd Dannau . . .' ( 217-19), 'Llyma yr ystatys a wnaeth Gruffudd ap Cynan i'r Penceirddiaid a'r Athrawon i gymmeryd Disgyblion . . .' (271-4), and 'Dosparth yr awgrym' ( 303); and transcripts of Welsh poems, sometimes a single 'englyn', including poems attributed to Dafydd ap Gwilym (169-70, 205), Siôn y Cent (175-9), Huw Machno (180-84), Thomas Carn (184-5), Thomas Dafydd ap Ieuan ap Rhys 'o Bwll y Crochan' (a sequence of twenty 'Englynion Eiry Mynydd ar Ddiarhebion') (187-93), Dafydd ap Edmwnt (194), Siôn Brwynog (195, 200), Hywel ap Syr Mathew (196), Dicc Huws (197), Syr Thomas Williams 'o Drefriw' (199), Dafydd Nanmor (200, 304), Thomas James (200), Rhys Cain (201, 203 ), Siôn Philip (201-02), Huw Pennant (202), Morgan ap Huw Lewys (202), Huw Arwystli (204), Tudur fardd coch (205), Llawdden fardd (206), Dafydd Manuel (207-10), Guttyn Owain (222-4), Edward Dafydd (265-7), and Thomas Llewelyn 'o Regoes' (304), a series of 'englynion' mostly to the nightingale reputedly composed in connection with 'eisteddfodau' held at Caerwys including 'englynion' attributed to Siôn Tudur, Wiliam Cynwal, Wiliam Lleyn, Rd. Davies, escob Mynyw, Robert Gruffydd ab Ieuan, Bartholom Jones, Huw Llyn, Elis ab Rhys ab Edward, Syr Lewys 'o Langyndeyrn', Hittin Grydd, and Lewys ab Edward (233-9), a series of one hundred and sixty stanzas with the superscription 'Chwedlau'r Doethion (o Lyfr Tre Brynn)' each stanza commencing 'A glywaist ti chwedl' (240-60), and a second sequence of thirty-four stanzas of the same nature (260-65).

Section 3 (pp. 313-444) includes prose items with the superscriptions 'Llyma Ragaraith Bardd Ifor Hael' (with a note thereon by [Edward Williams] 'Iolo Morganwg') (335-9) 'Cas Bethau Bardd Ifor Hael' (339), 'Trithlws ar ddeg Ynys Prydain' (340-41), 'Llyma fal y telid iawn dros alanas gynt. . .' (352), 'Llyma ddosparth yr awgrym' (356), 'Dewis Bethau Bach Buddugre' (357-8) 'Casbeth Ieuan Gyffylog' (358-9), 'Casbethau Dafydd Maelienydd' (362-3), 'Llyma gynghorion y Dryw o'r Llwyn glas' (364-6), 'Llyma gynhorion Gwas y Dryw' (366), 'Araith Ieuan Brydydd Hir o Lanylltid' (with a note thereon by [Edward Williams] 'Iolo Morganwg') (369-72), 'Llyma Enwau Prif Gaerydd Ynys Prydain' (393-7), and 'Dewis bethau Hywel Lygadgwsg' (424-5); transcripts of Welsh poems, sometimes a single 'englyn', including poems attributed to Wmffre Dafydd ab Han, 'clochydd Llan Bryn Mair' (321-7), Wiliam Philip 'o'r Hendre Fechan' (328-34), Morgan Mwcci Mawr (334), Richard Wiliam (343-9, 374), Dafydd Llwyd 'yn ymyl Llanrwst' (351), Dafydd Ddu 'o Hiraddug' (351), Llywelyn fawr y dyrnwr (360-61), Ieuan Brydydd Hir ( 372-4), Merfyn Gwawdrydd ('canu misoedd y flwyddyn') (375-82), Guttyn Owain (383-4), Maclaf ab Llywarch ('Eiry Mynydd' stanzas) (385-9), Taliesin Ben Beirdd (390-91, 398-401), Dafydd Edward 'o Fargam' (417), Thomas Llywelyn 'o Regoes' (417), Ednyfed Fychan (418), Morgan Llywelyn 'o Gastell Nedd' (419), Ystudfach Fardd (twenty-four 'Englynion y Bidiau') (421-4), Gwgan ab Bleddyn (426-7), and Davydd Davies 'o Gastell Hywel' (432); and miscellaneous items including instructions in Welsh for making fishing hooks ('Modd y gwneir Bachau enwair') (342-3), medicinal recipes (349-51, 420), lists of Welsh proverbs (353-5, 367-8), an anecdote re Taliesin and Maelgwn Gwynedd (391-2), a copy of the introduction written by Thomas Wiliems [of Trefriw] to his Latin - Welsh dictionary 'Thesaurus Linguae Latinae et Cambrobrytannicae' transcribed by [Edward Williams] ' Iolo Morganwg' from one of the manuscripts of Paul Panton of Plas Gwyn, Anglesey (now NLW MS 1983 of which see ff. 48-56) (402-13), a note by 'Iolo Morganwg' relating to Thomas Wiliems (414-15), a note relating to Cattwg Ddoeth (418), brief notes on Dafydd ap Gwilym, Llawdden Fardd, Dafydd ap Edmwnd, and Tudur Aled (428), four versions of the Lord's Prayer in Welsh 'o'r un llyfr yn llaw Edward Llwyd' (429-31), a note on Tudur Aled (432), and a short treatise commencing 'Llyma son am Fonedd ag anfonedd sef y traether am fonedd ac anfonedd yn hynn o fodd . . .' (433-9 ). Each section is preceded by a list of contents.

Miscellaneous papers and home-made booklets containing transcripts, lists, notes, memoranda, etc., in the hand of Edward Williams ('Iolo Morganwg') bound together in one volume. Pp. 1-64 contain transcripts of Welsh strict-metre poems attributed to Dafydd Benwyn, Siôn Ieuan ap Rhys Fychan, Llywelyn ap Hywel ap Ieuan ap Gronw 'o Lantrisant Misgyn', Iorwerth Hen, Dafydd Llwyd Mathau, Ieuan Du'r Bilwg, Owain ap Llywelyn ap y Moel y Pantri, Dafydd Hopcin 'o Blwyf y Coetty', Siôn Bradford, Rhys Morgan 'o Ben Craig Nedd', Gutto'r Glynn, Bedo Brwynllys, Syr Rhisiart Lewys, Siôn ap Hywel Gwynn, Rhisiart Iorwerth, Rhys Goch 'o Eryri', Ieuan Dyfi, Hopcin ap Thomas ab Einion, Dafydd ap Gwilym, and Hywel ap Dafydd ap Ieuan ap Rhys, with occasional notes on the poet and / or the poem attributed to Siôn Bradford. Preceding p. 1 are two, brown- paper leaves one of which is inscribed 'Englynion, Awdlau, a Chywyddau o Lyfr Ieuan Bradford a'i synniadau ef arnynt'. Other Welsh verse items transcribed include sequences of 'Englynion y misoedd' attributed to Merfyn Gwawdrydd and Madawg ab Merfyn Gwawdrydd (77- 85, 95-8), 'englynion' attributed to Gruff. ab Daf. ab Tudur (93), Rhisiart Iorwerth (93), Dafydd Nicolas, Aberpergwm (99), Cadwgan ap Rhys ( 99), Thos. Lln. Regoes (99), Llawdden (100), Ieuan Brydydd Hir (101), Siôn ap Dafydd (207), [Edward Williams] 'Iolo Morganwg' (216, 257), John Jones ' o Fôn' (218), D. Edmwnd (282), Tudur Aled (359), Edmwnd Prys (438), Gruff. Philip (438), and D[afydd ap] G[wilym] (470), a 'cywydd' attributed to Robert Huws 'o Fôn' (101-03), three poems entitled 'Buarth Beirdd', 'Canu y byd mawr', and 'Canu y byd bychan' [from the 'Book of Taliesin'] (105-10), a sequence of 'Englynion y coedydd a gant y Beirdd yn eu Cadair gân yn Llangynwyd', the 'englynion' being attributed to Edward Dafydd, Dafydd Edward, Charles Meredydd, Siams Thomas, Hywel Rhys, Dafydd Rhys, William Lidwn, Hopcin Thomas, Siôn Padam, Mathew Llwyd 'o Gelli Gaer', Llywelyn Thomas, and Harri Lleision 'o Lancarfan' (121-3), an 'awdl' and a sequence of eleven 'englynion' attributed to Edward Evans (125-30), extracts from the works of the Cynfeirdd as published in The Myvyrian Archaiology of Wales, vol. I, here transcribed under the superscription 'Assonances of the school of Taliesin or of the 6th century' (149-63), ten stanzas with the title 'Cân i'r llaw' attributed to Siôn Wiliams 'o Landathan' (181-4), further extracts from the works of the Cynfeirdd as published in The Myvyrian Archaiology, vol. I, under the superscription 'Cynghanedd unawdl. Consonance of rhime the only consonance that was systematically required by the Bards of the ancient school' (202-04), four stanzas with the title 'Darnau o Gân y Mab o'r Dolau Gleision' (209), further extracts from the works of the Cynfeirdd as published in The Myvyrian Archaiology (210-12), extracts from 'Y Gododdin' (374-85), and three stanzas attributed to Mabclaf ap Llywarch (489). (continued)

Prose items include a note on a 'vellum, very ancient' manuscript of the 'Laws of Dyfnwal Moelmud and other ancient Laws antecedent to those of Hywel Dda' allegedly to be found amongst the Hengwrt MSS in the late seventeenth century (93-4), triads (133-4, 136, 279), an account of 'wear and tear expences, daily expences on my [? Edward Williams's] Tour thro' South Wales in 1802' (167), a list of 'Names of Places in N[orth] W[ales]' (168-9), notes on Gruffydd ap Cynan's connection with the Welsh bardic laws (177-80), a brief note on Welsh vernacular dialects (180), a brief genealogy of Syr Rhys ap Thomas (187), a brief account of 'schools' of Welsh poetry, viz. the Ancient or Primitive school, the schools of Taliesin, Gruffydd ap Cynan, Tir Iarll or Rhys goch ap Rhiccert, and Llawdden, the Northwalian school, the schools of Nature, Gronwy Owain, Glamorgan, and the Gwyneddigion, the modern Southwalian school, and the school of the Jumpers including 'William Williams, the hymn carpenter' (258-9, 188-91, 196-9, leaves misplaced), two lists headed 'Naw Cyhydedd' and 'Corvannau' (201), a brief note on 'cynghanedd lusc', assonant terminations, and initial and complex alliterations (205), a brief pedigree of George Owain (206), a list with the superscription 'Letters and Essays of Iolo Morganwg' (219, 235), lists of caps and wigs which would be sold 'at the Annual Fair' on All Fool's Day (222-3), a list of 'Gwyr Cwm y Felin' (224; see NLW MS 13121B above ), two medicinal recipes for the cure of cancer (227-8), a statistical table showing average rainfall in various parts of the British Isles (228), a similar table showing the population of various South Wales towns [? circa 1800, see IM, t. 5] (230), a ? introductory note to an intended collection of Welsh proverbs and aphorisms (231), extracts from The Crit[ical] Review, June 1803 (233-4), lists of rare plants, various kinds of stone, clay, etc., castles, abbeys and monasteries, ancient houses in the Gothic style, other ruins, [gentlemen's] seats, British and Roman camps, and Druidical monuments, ? all in Glamorgan (240-52), a list of Glamorgan exports (253), a list of 'Fish in Ogmore River' (255-6), a brief pedigree of Oliver Cromwell (280), a list of Welsh families who derived their surnames from their place of residence (393-4), a list of North Wales poets whose names were derived from place-names and a list of South Wales poets (395-6), notes headed 'Peculiarities of the North Walian dialect' (405-09), a list of 'Barbarous names of places in Anglesea' (413), ? extracts from 'Adam Littleton's Latin Geographical and Historical Dictionary, Anno 1678' (429-31), a note on Llanfachreth church [co. Merioneth] (438), a list of the commissioners at the 'eisteddfod' held at Caerwys [co. Flint], 9 Elizabeth I, and of some of the bards licensed at the said 'eisteddfod' (453), two lots of notes on agriculture headed 'Ffermyddiaeth hen' and 'Hen ffermyddiaeth' (455-7), and biographical or genealogical notes or data (sometimes very brief) relating to Llywelyn Brenn, Ifor ap Einon, Llywelyn Bren Hen and Llywelyn Bren Ieuanc (165), Rhys Pritchard (176), Walter Lollard, Dafydd Ddu Hiraddug, John Stow, [John] Gower, and [Geoffrey] Chaucer (193), John de Ecclescliff, Lleibiaw, Ceraint Hir, Nicholas ap Gwrgant, and John Pascall, all bishops of Llandaff (192 + 200), Ifor Hael (200 + 235), Thos. Wilkins, rector of Lanmaes, ob. 1699 (200), Edward Davies, rector of St. Brides, ob. 1672 ( 201), members of the Berkrolls family (217), Gwynfardd Dyfed (235), and Wm. Llyn (487). Also included in the volume are lists or groups of Welsh words (sometimes with English definitions), extracts of varying length from the works of Welsh bards and poets (sometimes to provide examples of specific words, phrases, or names, e.g. Hu Gadarn), and notes or memoranda on a variety of subjects.

Copies made from the Red Book of Hergest by David Parry in 1697 (see f. 202), written mostly on one side only. The volume contains De Carolo Magno (ff. 7-77); Historia Caroli Magni (ff. 78-91); Imago Mundi (ff. 91-98); Brief Chronicle (f. 98 = cols 516-518 of the Red Book of Hergest); Cato Cymraeg (ff. 100-104 = cols 520-527 of the Red Book of Hergest); Breuddwyt Ronabwy (ff. 104-113); Proffwydolyaeth Sibli Doeth (ff. 114-119); Kyvoessi Myrdin etc. (ff. 120-125 = cols 577-584 of the Red Book of Hergest); 'Proff: yr Eryr, Pan aeth llu i lychlyn, Enweu ynys prydein etc.' (ff. 125-129); Iarlles y Ffynnawn (ff. 130-147); Peredur (ff. 147-172); Amlyn ac Amic (ff. 172-187); poetry (ff. 188-199 = cols 1366-1396 of the Red Book of Hergest); and Y Mab Cric Iustus llwyt (ff. 200-202 = cols 1362-1367 of the Red Book of Hergest). This text is followed by sayings of 'Cattwn ddoeth', Taliesin, etc. (f. 203); 'Breuddwyd Gron: Ddu' (f. 203); triads (ff. 204-207); and poetry by Lewis Glyn Cothi, Lewys Morganwg and others (ff. 208-214).

A composite volume, the contents being: ff. 1 recto-26 verso , 'Llyfr Barddoniaeth. sef y Gelfyddyd o ganu Cerdd Dafawd yn dda. O waith Gwilym Ganoldref. O Wynedd', i.e. William Midleton (the transcript, which is in the hand of 'Iolo Morganwg', is said on f. 25 verso to be copied 'o Lyfr Ieuan Tir Iarll, sef Sion Bradford', and appears to be similar to that found in NLW MS 13096B (Llanover C. 9.), pp. 201-35; there are references to the text published in Dafydd Lewys, Flores Poetarum Britannicorum . . . (Mwythig, 1710), pp. 59-80, on ff- 3 recto and 7 recto; 'Iolo Morganwg' dates his 'Rhagysbysiad' on f. 2 recto as follows: 'Trefflemin ym Morganwg Chwefror yr ail, 1806', and a note on f. 1 recto, 'For Mr. Wm. Owen', suggests that the text was to be sent to William Owen [-Pughe]; for confirmation see NLW MS 13221E, pp. 139 & 143, and also NLW MS 21282E, no. 370; ff. 27 recto-59 verso, & 62 recto-verso, 'Llyma Gadwedigaeth Cerz Davawd This is the Institute of the science of Language', being Welsh and English versions of a bardic grammar in the hand of William Owen [-Pughe]; f. 60 recto- verso, a transcript of a 'Toddaid Taliesin' with notes by 'Iolo Morganwg'; f. 61 recto-verso, 'Cywydd i Syr Walter Vicar Brynbuga ag i'r chware Miragl a wnaeth ef yno', attributed to Meredydd ap Rhosser, beginning 'Pwy'n Athro call wrth Allawr . . .', in the hand of 'Iolo Morganwg', who claims to have copied it from 'Llyfr Mr. Lewys o Ben Min'; ff. 63 recto-66 recto, vocabularies; f. 67 recto, memoranda by William Owen [-Pughe] dated 1807; and f. 68 recto, printed proposals for printing Dosparth neu Gramadeg yr laith Gymraeg . . . o Gasgliad R[obert] D[avies] o Nantglyn. At ba un y chwanegir, Rheolau Barddoniaeth Gymraeg, gan D[avid] T[homas] o'r Waun Fawr yn Arfon.

A manuscript volume with the title 'AMRYW' in gold lettering on the spine. Written throughout by William Owen [-Pughe], the manuscript contains transcripts of parts of two older manuscripts, the one in the hand of Lewis Morris [B.M. Add. MS 14908, ff. 36-58], and the other in the hand of Owen Jones, 'Owain Myfyr' [B.M. Add. MS 15020, pp. 1-5, 7-12, 27-8, 33- 5, 44-5, 52-8, 67-70, 93-107, 109-15, 117-23]. The first item in the present manuscript, pp. 1-39, is a transcript of the Statute of Rhuddlan, 'Ystatus Rhuddlan yw hon. A.D. 1283', copied from Lewis Morris's manuscript, which is in turn a copy of a vellum manuscript in the Hengwrt library, which he transcribed in 1738 [i.e. Peniarth MS 41]. The remainder of the present manuscript is copied from B.M. Add. MS 15020, pp. 49-50, 'Rhif Carennydd'; pp. 50-52, 'Llyma y 24 gore, y rhai sy'n ddysg ac yn siampl dda'; p. 53, 'Tri anrhaith Marx Ynys Prydain Mr. Morris o'r Ll. Dû o Gaerfyrddin, Tri Thrin Eddystir Ynys Prydain, Tri Gohoew Eddystir Ynys Prydain, Tri hoew Eddystir Ynys Prydain'; p. 54, 'Cis ddynion Selyf ddoeth'; p. 55, 'Câs Bethau Owen Cyfeiliog'; pp. 56-9, 'Arthur a'i Farchogion (o Lyfr Lewis Dwnn), 3 Aur dafodiawg Farxawg, 3 Marxog Gwyryf, oedd yn Llys Arthur, 3 Chad Farxog, 3 Lledrithiog Farxog, 3 Brenhinawl Farxog, 3 Chyfion Farxog, 3 Gwrthyniad Farchog, 3 Chynghoriad Farxog'; p. 60, 'Pum maib Cenau ap Coel hen ap Riodawr [sic] o'r Gogledd'; pp. 61-3, 'Plant Llowarx hen o fwy nag un wraig, Plant Owain hael ap Urien, Plant Llew ap Cynfarx, Meibion Cynwyd Cynwydion, Plant Urien Reged, Plant Cynfarx'; pp. 64-6, 'Tri thlws ar ddêg ynys Brydain a roed i Daliesin hen Beirdd'; p. 67, 'Saith Gyneddf Gwr dewisol - Taliesin a'i Dywawd'; p. 67, 'Nattur Meddwdod (allan o Dlysau'r hen Oesoedd gan Lewis Morris Yswain)'; pp. 68- 75, 'Llyma Trioedd Arbennig, Trioedd Serch, Trioedd Taliesin, Trioedd Mab y Crinwas'; p. 76, 'Llymma Leoedd ynghorph Dyn y bydd swrn gyneddfau ynddynt'; p. 76, 'Geiriau Gwir Cattw ddoeth'; p. 77, 'Saith ymofynion saith o wyr doethion, ac atteb pob un i'w gilydd'; p. 78, 'Geiriau Gwir'; pp. 79-88, 'Hanes yr Ymrysongerdd rhwng Edmwnt Prys Arxdiagon Meirionydd a Wiliam Cynwal prydydd ac Arwyddfardd - (Ll. Gwyrdd R. Morris Esq.)' [cf. Y Greal (Llundain, 1805), tt. 9-13]; pp. 89-119, 'Damhegion a 'sgrifenwyd ar Femrwn ynghylch y Flwyddyn 1300 - adgrifenwyd [sic] 1769. O. Jones - a minnau 'sgrifenais o Lyfr O. Jones, 1783 - Gwilym Owain', [cf. Y Greal ( Llundain, 1806-1807), tt. 322-9, 366, 279-80, 366-70, and also in Ifor Williams, Chwedlau Odo (Caerdydd, 1957), tt. 1-8, 11-23]; pp. 120-5, 'Copïau o Gwynion fal y maent yn Ysgrifenedig o law Guttyn Owain, gyd â Mr. Trefor, Tref Alun, Cwyn Camgroes, Cwyn torr Croes, Cwyn Anghyfarx, Cwyn Amobr, Cwyn sarhaed', [cf. Y Greal (Llundain, 1806), tt. 321-2, 281, 322]; pp. 126-8, 'Goleufynag o rai Henwau gan y Parchedig Mr. Dav. Jones 1572 - allan o Lythyrau y Parx. Sion Morgan at Moses Williams - Mai 3. 1714'; p. 128, 'Englynion [3] yn rhagymadrodd Llyfr L. Dwnn', beginning 'Fe ddenfyn Duw gwyn da i gyd - a fo raid . . .', with the ascription 'Lewis Dwnn 1606'; p. 129, five 'englynion' entitled 'I'r Pedwar Gwynt' by 'Simwnt Fyxan. Pencerdd', beginning 'Dwyrain dwymyn syx lle'r ymdeurydd, - llu . . .'; p. 130, an 'englyn' entitled 'I Delyn' ('Dd. Ellis a'i cant Jes. Coll. Oxon from Meirion but qu. Revd. Gro. Owen's hand writing. R.M.') beginning 'Difyrrwx di drwx di drais - tawelaidd . . .'; and pp. 130-33, 'Cywydd o waith y Parxedig Sion Morgan i Moses Williams', beginning 'Moes yn awr, wr mawr, i mi, . . .', followed by the note: 'Danfonodd y Cywydd hwn fal y mae heb ei orphen mewn Llythyr i M. Williams yn Nhy Mr. Thomas, Crane Court Fleet Street London - Dyddiedig Odd. Ionawr 1717'. Tipped in on p. 135 is a note, 17 July 1823, referring to Mrs. Townley and Captain Tuck.

A scrap-book of John Jones ('Myrddin Fardd') containing cuttings from Welsh and Welsh American newspapers, with occasional manuscript annotations by the compiler. The titles include 'Llenoriaeth Geltaidd' by [John Peters] 'Ioan Pedr', 'Cyfraith a Chyfreithwyr yr Hen Gymry', 'Prydain yn yr Hen Amser', 'Beirniadaeth Feiblaidd' by L. E. Lewis, Lisle, New York, 'Llosgi Llyfrau' by 'Thalamus', New Straitsville, Ohio, 'Gwahanfodaeth y Genedl Gymreig' by W. Morris ('Rhosynog'), Treorci, 'Y Mabinogion', 'Y Llyfr Gweddi Cyffredin' by [John Jones] 'Tegid', Oxford, 'Eisteddfod Salt Lake City. Beirniadaeth Pryddestau y Gadair .....' by T. C. Edwards ('Cynonfardd'), 'Bedyddwyr Cymru: eu dyled i'w haneswyr' by E. T. Jones, Llanelli, 'Hanes yr Hen Eglwys Brydeinig' translated by Herbert Jones, 'Noson gyda'r Llyfr Emynau' by E. M. Evans ('Morfryn'), Liverpool, 'Geiriau Saesneg diarfer wedi aros yn y Gymraeg' by J. Hammond, Scranton, 'Gwerin-eiriau Sir Gaernarfon', etc., by [Owen Griffith Owen] 'Alafon' (1907), 'Llen Gwerin Sir Fon' by [Morien Môn Huws] 'Morien', 'Gwerin-eiriau Sir Gaernarfon' by [James Spinther James] 'Spinther', 'Myrddin Fardd a Llenyddiaeth Lleyn' by J[ohn] Daniel [rector of Llandudwen] (1907), 'Pererindod i Lanilltyd Fawr (Llantwit Major)' by 'Caron', 'Y modd y daethym o hyd i fedd Goronwy Owen o Fon' by David Lloyd, Maine, 'Taith i Glynnog' by 'Llwyd y Gwrych', 'Taliesin Benbeirdd' by [Ellis Pierce] 'Ellis o'r Nant', 'Poblogrwydd Ysbrydegaeth, a barn dynion mawr ar y pwnc' by Joseph Roberts, DD [of New York, etc.].

A volume made up of correspondence, poetry, printed items, etc. The letters, about one hundred and six in number, 1786-1806, are addressed (except where otherwise stated) to William Owen [-Pughe], and the correspondents, in alphabetical order, are the following: p. 505, Mary Belk, French Gate, Doncaster, 1805 (1, to Mrs. Owen) (mention of visions of Mrs. Southcott, etc.); p. 443, Edward Charles ['Siamas Wynedd'], London, n.d. (1) (he wishes to subscribe to the dictionary, a series of twelve 'englynion' ('Molawd y llyfr')); p. 471, Wm. Cunnington, Heytesbury, 1806 ( 1) (an account of Marden or Merden between Devizes and Everly [sic]); p. 278, J[ohn] Daniel, [Carmarthen, 1793] (1) (a note re copies ordered of the dictionary); pp. 239, 241, 245, Edwd. Davies, Sodbury, 1792 (2, and 'Scheme of an Essay on the History of the Bards') (sending a paraphrase of Taliesin's elegy on the death of Owain son of Urien prince of Reged); p. 470, Hugh Davies, Beaumares, 1806 (1) (mention of the abridgement of the addressee's great work, he has nearly completed the trifle containing the account of the British names of plants, a gout prescription); pp. 219, 273, 291, 501, Walter Davies, 'Gwallter Mechain', All Souls Col[lege], Oxford, and Myfod,1793-1805 and undated (4, one to Owen Jones) (the addressee's dictionary, the Cylchgrawn, re the return of Owen Jones's books, the writer's work in connection with the S.P.C.K. Welsh Bible, he is setting off for South Wales owing to Iolo [Morganwg]'s strange conduct); p. 163, G[eorge] Ellis, London, [1803] (1) (mention of Walter Scott, the Mabinogion, Leyden's opinion); p. 155, W[illiam] Gunn, Irstead, Norwich, 1803 (1) (the illness of his eldest daughter, requesting further assistance in identifying the British cities of Nennius, the 'Vindication of the Celts' by the addressee's friend); pp. 483, 488, 491, Richd. Hoare, [1805] (2, and a list of persons and places mentioned in the Hirlas poem) (various queries re Giraldus); pp. 281, 379, John Jones, curate of Llangadfan, Llangadfan, 1790 and [1793] (2) (the specimen of the addressee's dictionary, a request concerning a near relation (a girl) who is anxious to come to London); pp. 255, 263, 288 ('englynion'), 381, 439, Thomas Jones, Colommendy, Corwen, Llanrhaiadr in Mochant [sic], and Excise Office, Bristol, 1789-1795 (4, two to Edward Jones ['Bardd y Brenin']) (sending 'penillion' (enclosure wanting), the Bala Eisteddfod (1789), the St. Asaph Eisteddfod (1790), the addressee's proposed dictionary, chance and not choice has brought him to Bristol for two years, mention of John Evans, the Penmorfa Eisteddfod (1795), a young Quaker in Bristol (unnamed), the writer's health); pp. 267, 282, 289, 301, 303, 311, 339, 343, 367, 371, 373, 377, (?)387, 415, Will[iam] Jones, 'Cadfan' or 'Gwilym Cadfan', Llangadfan, 1789-1794 (13 and an address) (words for the dictionary, emigration, autobiographical details, an address 'To all indigenous Cam- brobritons', mention of Ezeckiel Hughes, etc.); p. 345, John Lloyd [Holywell postmark, 1790] (1) (hints concerning the specimen of the addressee's dictionary, subscribers' names); pp. 495, 497, Tho[mas] Lloyd, North Walsham, 1805 (2) (requesting translations of passages (specified) in the 'Wisdom of the Cymri [sic]', Iolo Morgannwg [sic] and the History of the Bards, the Welsh Archaiology); p. 385, Thomas Owans, New Inn, Llanrwst, 1791 (1, to Owen Jones) (a letter to the Gwyneddigion in London mentioning the Llanrwst Eisteddfod and hoping they will be no less assiduous in caring for the work of the old poets, reference to the manuscripts of Dafydd Sion, 'Dewi Fardd', at Trefriw, and to a manuscript of Welsh poetry belonging to Thomas Holland of Manchester, son of John Holland of Te[i]rdan in the parish of Llan-Elian yn rhos, co. Denbigh, his own circumstances); p. 159, Jane Owen, Nassau, New Providence, 1801 (1) ( her plight following the death of John Owen, with a cutting headed 'The Bahama Gazette', 16 Oct. 1801); pp. 285, 295, Richard Powel, 'Y Bardd Glas o'r Gader', Yspytty Ifan, 1793-1794 (2, one to [Thomas Jones, Llanrhaiadr y Mochnant]) (he has not yet received the medal, items of poetry addressed to Thomas Jones, William Owen [-Pughe], and [David Thomas] 'D. Ddu o Eryri '); pp. 277, 307, Morg[a]n J[ohn] Rhees, Carmarthen and Philadelphia, 1793 and 1796 (2 and a printed prospectus of the Cambrian Company); (continued)

pp. 349, 353, 403, 461, W[illiam] Richards, Lynn, 1790-1803 (4) (the addressee's proposed dictionary, the Welsh Indians, how he relinquished his design of compiling a small Welsh dictionary for the use of Gwŷr Dyfed chiefly, mention of three bungling Welsh dictionaries now set on foot); p. 271, Evan Richardson [i.e. Evan Pritchard], 'Ieuan ab Risiart alias Ieuan Llyn', Bryncroes, [17]93 (1) (wishing to know the price of the addressee's dictionary, whether to come to London); pp. 465, 467, 479, Griffith Roberts Senior, Surgeon &c., Dolgelley, 1804 (3) (intelligence that his son Jhon [sic] Roberts is dead, the writer's MSS); pp. 447, 449, D[avid] Samwell, 'D. Feddyg Du', [1797] (2) (the printed proclamation [of the (1798) Caerwys Eisteddfod]); pp. 249, 275, 313, 318, 319, 321, 325, 329, 333, 335, 357, 389, 393, 397, 419, 423, 427, 431, 435, 455, 457, David ( Dafydd) Thomas, 'Dafydd Ddu Eryri', writing from Waunfawr, Llanddeiniolen, Bettws Garmon, Caernarfon, Llanystumdwy, Plas Gwyn, Llanfair Bettws Geraint, and Amlwch, 1786-1798 (21) (literary matters, etc., including the intention of the writer and others to form a society called 'Eryron' (Snowdonians), Barddoniaeth Dafydd ab Guilym, draft proposals for printing 'A Guide to the British Language' by H. & D. Thomas, a draft title-page, etc., for 'Awdlau ar destynau Cymdeithas y Gwyneddigion i'r Eisteddfodau B. A. 1789, 1790, 1791 . . . gan Dafydd Ddu o'r Eryri', and items of poetry); p. 509, G[eorge] Thomson, Edinburgh, 1805 (1) (to Thomas Johnes, see NLW MS 13223C, p. 257) (a request for original Welsh airs, to be harmonized by Haydn); p. 399, John Walters, Cowbridge, 1790 (1) (re the specimen of the addressee's dictionary); and pp. 11, 25, 29, 33, 37, 41, 49, 53, 55, 59, 63, 67, 71, 75, 79, 83, 87, 91, 95, 99, 103, 107, 111, 115, 119, 123, 127, 131, 135, 139, 143, 147, 151, Edward Williams, 'Iolo Morganwg', writing mainly from Flimston but also from London, Llanrwst, Hafod Uchtryd, Cowbridge, and Gileston, 1788-1806 (33) (literary and personal matters). Some items of poetry are to be found in the letters (see under the names Edward Charles, Edward Davies, William Jones, Richard Powel, and David Thomas). At the beginning of the volume, pp. 3-10, 15-24, are a number of 'cywyddau' attributed to Dafydd ap Gwilym, with notes. These are in the autograph of Edward Williams, 'Iolo Morganwg', and they include the poems now known as 'Cywyddau'r Ychwanegiad'. Also in the volume are poetical compositions, some holograph, by Goronwy Owen (pp. 199-218, 451-3), and Lewis Morris, 'Llewelyn Ddu' (pp. 221-33), and instances of the work of the following poets: Edward Williams, 'Iolo Morganwg' (pp. 43-5, ?523-4, holograph), William Philyp [sic] (pp. 170-1), William Wynn, Person Llan- Gynhafal (pp. 189-96), Edm[un]d Price, Archiagon Meirionydd (pp. 197-8), Ieuan ap Hywel Swrdwal or Ieuan ap Rhydderch ap Ieuan Llwyd (pp. 235-7), [David Thomas], 'D[afydd] Dd[u] Er[yri]' (pp. 253-4, holograph), D. Pugh (pp. 529- 30), Robert Davies, Nantglyn (pp. 535-8), Jo. Davies ['Siôn Dafydd Las'] (p. 548), and 'Owen ap loan', Caer-gybi (pp. 553-6) with anonymous pieces on pp. 517-8 and 561-8. Miscellaneous items include the following: pp. 173-84, a transcript in the autograph of Evan Evans, 'Ieuan Fardd' or 'Ieuan Brydydd Hir', of the 'Mirabilia' associated with the 'Historia Brittonum' and of c. 57-66 of the Historia (cf. NLW MS 7011D, pp. 202-12, and NLW MS 1982 (Panton 13), ff. 42 verso-58 recto); pp. 259-62, extracts from certain Wynn of Gwydir papers headed 'Instances of the custom of making presents to the Judges' (? in the autograph of Paul Panton, senior); pp. 407-14, a list, under headings, of Welsh physical and geographical features (? in the autograph of David Thomas, 'Dafydd Ddu Eryri'); pp. 475-6, a list of diocesan registrars, etc.; p. 520, a note concerning the medals to be awarded at the Gwyneddigion eisteddfod of 1790 with mention of those for 1791; pp. 545-6, notes concerning Dr. John Davies of Mallwyd; and pp. 549-50, a list of 'British names of Shells & Crustaceous fish' and 'Prif gaerae ynys Brydain gynt'. The printed items comprise: p. 1, 'Trial by Jury' . . . A Song, sung . . . Feb. 4, 1795 in celebration of the . . . trials . . . and . . . acquittals of Thomas Hardy, John Horne Tooke, and John Thelwall . . .' by Edward Williams ['Iolo Morganwg']; pp. 166-7, 514-5, 540-1, a broadsheet containing 'Dull ac amcanion Cymdeithas y Cymreigyddion' by E[dward] Charles, 1796, and 'Cerdd y Cymreigyddion' by J[ohn] Jones, Glan y Gors (three copies, the first endorsed 'Mr. Owen from T. Roberts'); pp. 361- 3, 'Ode for the New Year', 1790, attributed elsewhere to David Samwell; pp. 365, 519, an announcement concerning the Gwyneddigion eisteddfod to be held at Bala the following Michaelmas [1789] and the subjects for the ensuing year (two copies); p. 521, 'Plan of the Triangles made use of for obtaining the Geometrical Distance and Altitude of Snowdon and Moel Eilio with respect to the Sea at Carnarvon. Augt. 1775' extracted from Philosophical Transactions of the Royal Society of London, Vol. LXVII, Tab. XVIII, p. 788; pp. 525-8, 'The Arabic Alphabet' with notes (two copies); and p. 533, an announcement of the forthcoming publication of Heroic Odes and Elegies of Llywarch Hen, with translation by William Owen. There are also a few loose papers.

A manuscript in two volumes containing a corpus of Welsh strict-metre verse consisting almost entirely of 'cywyddau', and a few Welsh prose items. The foliation of the 'text' (original f. 1 missing, original ff. 2-21 renumbered 1-20, a previously unnumbered folio between original ff. 21-2 now f. 21, ff. 22-623 as originally numbered with 75 twice and 265 and 577 missed out) is continuous, and the division into vol. I (ff. 1-300), now NLW MS 13061B, and vol. II (ff. 301-623), now NLW MS 13062B, occurs in the middle of a poem. Unnumbered leaves of later origin than those of the text have been inserted at the beginning and end of each volume. The manuscript, sometimes referred to as 'Y Byrdew Mawr', is in the hand of Thomas ab Ieuan of Tre'r-bryn, parish of Coychurch, co. Glamorgan, the scribe of NLW MSS 13063B, 13069B, and 13085B, and was probably transcribed in the last quarter of the seventeenth century, partly from the manuscripts of an earlier Glamorgan copyist, Llywelyn Siôn (see TLLM, tt. 95, 167-73, 218-19, 268; IM, tt. 87, 154, 264; and IMCY, tt. 81, 175). It was probably presented to Edward Williams ('Iolo Morganwg') by the copyist's grandson also named Thomas ab Ifan (see TLLM, tt. 170, 268). The contents include (revised foliation) :- 1 recto - verso, rules re interpreting the significance of dreams in relation to the phases of the moon (incomplete); 1 verso-8 recto, another set of rules (183) for interpreting dreams ('Deall braiddwydon herwydd Daniel broffwyd'); 8 recto-11 recto, a sequence of forty-eight 'englynion' entitled 'Englynion rhwng Arthur a Liflod i nai' (see The Bulletin of the Board of Celtic Studies, vol. II, pp. 269-86); 11 recto-verso, a poem attributed to 'Taliesin ben bayrdd'; 12 recto-15 verso, prognostications including 'Arwyddion kyn dydd brawd', and four 'englynion'; 16 recto-21 recto, 'Llyma anian diwarnodav y vlwyddyn o gwbl oll'; 21 verso, prognostications re birthdays; and 22 recto-623 verso, poems ('cywyddau' unless otherwise indicated) by Iorwerth Vynglwyd (17), Ieuan Rydd, Tydur Aled (12), Howel ap Rainallt (3), Mathav ap Lle'n Goch, Lewys y Glynn (7), Davydd ap Edmwnt (5), Siôn y kent (24), Davydd llwyd (2), Risiart Iorwerth (4), Llawdden (or Ieuan Llawdden) (6), Davydd Nanmor (5), Iolo Goch (8), Ieuan Daelwyn (13), Lewys Morgannwg ( 18), Thomas Lle'n (5, also 1 'englyn'), Howel ap Davydd ap Ieuan ap Rys (17), Ieuan Tew Bry[dy]dd Ievank (3), Huw Kae Llwyd (8), Ieuan Dyvi (2), Ieuan ap Howel Swrdwal (2), Davydd Llwyd Lle'n ap Gr' (3), Risiart ap Rys Brydydd (3), Tomos Derllysg (4), Gyttyn Kairiog, Ieuan Llwyd ap Gwilym, Ieuan Rydderch ap Ieuan Llwyd (3), Robert Laia, Ieuan Du Bowen Lle'nn ap Howel ap Ieuan ap Gronw (7), Rys Goch 'o Vochgarn', Ieuan Brydydd Hir, Gytto'r Glynn (25), Maredydd Brydydd, Howel Swrdwal (3), Thomas Lle'n Dio Powell (2), William Kynwal, Siôn Tydyr (7), Hyw Davi 'o Wynedd' (3), Huw Davi, Tomas ap Siôn Kati (2), Syr Rys 'o Garno', Syr Lewys Maudw, Syr Phylip Emlyn (2), Huw Lewis, Davydd Ddu Hiraddug, Davydd ap Gwilym (10), Bedo Aurddrem, Morys ap Howel, Ieuan Tew Brydydd (9), Siôn Brwynog, Harri ap Rys ap Gwilym (3), Morys ap Rys, Davydd Benwyn (11), Rydderch Siôn Lle' nn, Sils ap Siôn (3), Lle'n ap Owain, Syr Huw Robert L'en (3), Davydd ap Rys, Thomas Gryffydd, Siôn Phylip, Gwyrfyl verch Howel Vychan, Morgan ap Howel (or Powel) (4), Lle'n Siôn (8), Gryffydd Gryg (5), Maredydd ap Rys, Tydur Penllyn (2), Gronw Wiliam, Bedo Phylip Bach (4), Siôn Mowddwy (11), Rogier Kyffin (4), Wiliam Gryffydd ap Siôn (2), Hyw Dwnn, Lewys Môn (5), Wiliam Egwad (2), Ieuan Du'r Bilwg (2), Rys Brydydd, Daio ap Ieuan Du or Daio Du o Benn Adainiol (3), Gwilim Tew Brydydd (10), Rys Brychan, Maredydd ap Roser, Daio Lliwiel, Lle'nn Goch y Dant, Gryffydd Davydd Ychan (2), Syr Gryffydd Vychan, Lang Lewys, Rys Llwyd Brydydd, Meistr Harri Le'n ( 2), Siôn ap Howel Gwyn (2), William Llvn (5), Ieuan Gethin (ap Ieuan ap Llaison) (3), Gwilim ap Ieuan Hen, Ieuan ap Hyw, Gryffydd Hiraethog (5), Rys Pennarth, Davydd Llwyd Mathav (4), Davydd Emlyn, Davydd Goch Brydydd 'o Vyellt' (2), Rys Nanmor (3), Risiart Vynglwyd (2), Watkin Powel (6), Mairig Davydd (4), Ieuan Rauadr, Owain Gwynedd, Morgan Elfel, Syr Davydd Llwyd (3), Ieuan Thomas (4), Rys Goch 'o Eryri' (3), Lle'n vab Moel y Pantri (2), Syr Davydd ap Phylip Rys, Rys Trem, Siankin y ddyfynog (3), Morys ap Lle'nn, Risiart Thomas, Lle'nn Mairig, Gryffydd Llwyd ap Davydd ap Einon, Gryffydd Llwyd ap Einon Lygliw, Hopgin Thom Phylip, Edward Davydd (4), Ieuan Du Davydd ap Owain, Bedo Brwynllys, Thomas ap Rys 'o Blas Iolyn', Thomas Wiliam Howel, Davydd ap Ieuan Ddu, Syr Owain ap Gwilym, Rys ap Harri 'o Euas' (2), Edwart ap Rys, Davydd Manuel 'o Sir Drefaldwyn', SiamsThomas, Thomas Brwynllys, and Swrdwal. The unnumbered folios at the beginning of each volume contain a list of the contents of the volume giving, in the case of the poems, the name of the poet, in a hand bearing a strong resemblance to that of William Owen Pughe, and the title of the poem, in the hand of Edward Williams. The folios at the end of the first volume contain an index of the bards whose works appear in both volumes. This is possibly in the hand of Hugh Maurice, tanner and copyist. On one of the added folios at the end of the second volume is a poem to the Reverend John Jones, D.D., dean of [the cathedral church of] Bangor. Both volumes contain marginalia in the hand of Edward Williams.

A composite volume consisting of seven home-made booklets with stiff, brown paper covers bound together. The contents of six of the booklets consist of series of Welsh triads in the hand of Edward Williams ('Iolo Morganwg'), the various booklets containing the following series-Book I (pp. 11-62), ['Trioedd Doethineb'], 'Trioedd Gwladoldeb', 'Trioedd y Meddwyn', 'Trioedd Cyfarwyddyd', and 'Hen Drioedd Dosparth'; Book II (pp. 63-106; the inscriptions on the outer and inner upper cover appear to indicate that the contents were to consist of a series of 'Trioedd Braint a Defod', but the pages are blank except for p. 65 which contains two miscellaneous triads probably in the hand of Taliesin Williams); Book III (pp. 107-58), 'Trioedd Braint a Defod'; Book IV (pp. 159-206), 'Trioedd Doethineb', 'Hen Drioedd o Lyfr Thomas Glyn Cothi . . . Trioedd Taliesin in al.', 'Trioedd Serch' from the same source , 'Hen Drioedd Doethineb o Lyfr Watkin Giles', 'Trioedd Cyfarwyddyd', and 'Trioedd Barddas'; Book V (pp. 207-44), 'Trioedd y Dieithr', 'Hen Drioedd Cerdd Cymmysg sef Trioedd o Lyfr Iorwerth Fynglwyd . . .', 'Trioedd Llawdden Fardd a ddangos . . . efe yn Eisteddfod fawr Caerfyrddin' (on a strip of paper pasted on to p. 228), 'Trioedd Llaw[d]den Fardd sef Trioedd Cerdd Dafawd', and 'Trioedd Llawdden Fardd a ddangoswyd yn Eisteddfod Caerfyrddin 1451'; Book VI (pp. 245-84), 'Trioedd y Llafurwr o Lyfr Thomas Morys o Fodryngall yn Ystrad Dyfodwg a ysgrifennwyd ynghylch y flwyddyn 1700 gan Rhys Lewys, Meistr Ysgol yn Llanwonno . . .', and 'Trioedd Ach a Bonedd'; and Book VII (pp. 285-336), 'Trioedd y Brodyr o Lyfr Llywelyn Siôn' ('Rhisiart Iorwerth a'i Cant'), a second series with. the same title ('a Rhisart Iorwerth a gant y rhain hefyd'), 'Trioedd Mab y Crinwas o Lyfr Esaia Powel . . .' ('Gutto'r Glynn au Cant i'r Eisteddfod fawr ynghaerfyrddin'), 'Trioedd y Cymro o Lyfr Thos. Philip o Dreoes . . .' ('Hopcin Twm Philip o'r Gelli fid ai Cant'), 'Trioedd y Sais' from the same source, 'Trioedd y Lladron sef ydynt Brenin, Offeiriad, a Lleidr' from the same source, 'Trioedd Ysmalhawch Amrafaelion', 'Trioedd Beirdd', 'Trioedd Amrafaelion' (two series), 'Trioedd Cerdd Amrafaelion', and 'Trioedd Braint a Defawd'. Some of the series are incomplete and there are occasional annotations by Edward Williams and ? by Taliesin Williams, his son.

A composite volume containing series of Welsh triads, some incomplete or very brief, in the hand of Edward Williams ('Iolo Morganwg'). Included are series with the superscriptions 'Trioedd Beirdd Cymru. Llymma Drioedd a ddangoswyd gerbron Cadair Tir iarll gan Risiart Iorwerth mab Iorwerth Fynglwyd (o Lyfr Thomas Hopcin o Langrallo) . . .' (preceded by a list of incipits of thirty-nine of the one hundred and forty triads), 'Trioedd Beirdd Ynys Prydain a'r son y sydd gan Lafar Gorsedd am danynt a'u hanfod a'u hansawdd' (incomplete, four only, with introductory notes), 'Llyma Drioedd Beirdd a Barddoniaeth a dynnwyd o Lyfrau y prifeirdd nid amgen nac o Lyfrau Taliesin Ben Beirdd, a Merddin Emrys, a Merddin ap Morfran . . .' (with end note 'Ac felly y Terfyna Drioedd Gruffudd ab Cynan sef a'u gelwir felly am iddaw ef eu myfyriaw a'u trefnu gyntaf gan eu tynnu allan o lyfrau . . . Myrddin ab Morfran, a Myrddin ab Emrys Wledig, a Thaliesin . . .'), 'Llymma Drioedd Cerdd a ddangoswyd yn yr Eisteddfod fawr ynghaerfyrddin' (with end note '. . . a Dafydd ab Edmund a' u dangoses ym m. . .aen yr Eisteddfod fawr ynghaerfyrddin . . .'), 'Llymma Drioedd Rhys Nanmor a ddangoses efe yn Eisteddfod fawr Caerfyrddin', 'Trioedd y Gymraeg', 'Trioedd y Gymraeg sef Trioedd Talhaiarn, Ieithyddiaeth (Gramatical)', 'Trioedd Iaith ag ymadrodd cymysg', 'Trioedd Cymmysg, Dychan - Pawl, etc.', 'Trioedd amrafaelion, Pawl, etc., Cerdd' (two only), 'Trioedd Bonhedd' (one only), 'Llyma Drioedd Llawdden Fardd a ddangoses efe yn Eisteddfod gyntaf Caerfyrddin', 'Trioedd Cerdd Meyric Dafydd', 'Trioedd Defodau a Breiniau', 'Trioedd Braint a Defod (Defawd)', 'Trioedd Breiniau a defodau Cenedl y Cymry . . .', 'Hen Drioedd eraill amrafaelion eu pwyll', 'Llyma Amrafaelion o foddion ar Drioedd y Beirdd o amrafael Lyfrau ysgrif', 'Trioedd Serch, Trioedd Llyfr Ben Simon', 'Eraill o Lyfr Owain Jones', 'Eraill', 'Trioedd Arwest', 'Trioedd y Beirdd herwydd Defodau a gofynion Cadair Morganwg', 'Trioedd cymmysg', 'Llyma Drioedd Beirdd a Cherdd', 'Trioedd y mesurau', 'Trioedd y Trioedd', 'Trioedd amrafaelion', 'Llyma Drioedd y Bardd Glas sef ydynt am y mesureu Cerdd Dafawd (a Thrioedd yr Addurneu)', 'Llymma Drioedd o Lyfr Rhisiart Iorwerth', 'Trioedd yr addurneu', 'Trioedd Barddas . . .', 'Trioedd Tir Iarll', 'Trioedd Prydyddiaeth Beirdd Tir Iarll gwaith Abad diweddaf Margam', 'Trioedd Cerdd sef Trioedd y Teuluwr', and 'Llyma Bigion o Drioedd Cerdd dafod Huw Cae Llwyd o Langyfelach cylch y Flwyddyn 1450'.

Miscellaneous papers, home-made booklets, etc., containing material in the hand of Edward Williams ('Iolo Morganwg') bound together in one volume. P. xliii bears the inscription 'Trioedd amrafaelion a gynnulliwyd yng Ngwynedd yn y Flwyddyn 1799', and underneath this is a list of the names of six series of Welsh triads and a note (probably in the hand of Taliesin Williams, son of Edward Williams) which reads 'This Packet contains a variety of Triads resembl[ing] very much those of the Island of Britain and that are in all probability some of the lost ones of that Class. Jan. 17, 1831'. P. 1 bears the inscription 'Trioedd amrafaelion a gasglwyd yng Ngwynedd yn y flwyddyn 1799 Gan Iolo Morganwg', and underneath this is a list of the names of seven series of triads. Following on pp. 3-70 are series of triads with the superscriptions 'Trioedd Cerdd o Ddosparth Cerdd Dafawd Simwnt Fychan Bencerdd, A Robert Fychan o Hengwrt a'i dadysgrifennodd o Lyfr yn Llaw S.F. ei hun' (according to a note added to this superscription and a further note on p. 16 this series was copied in 1799 by Edward Williams from Panton MS 35 [now NLW MS 2003] in the hand of the Reverend Evan Evans ('Ieuan Brydydd Hir')), 'Trioedd o Lyfr y Parchedig Mr. Davies o Fangor' (with added note 'Yn Llyfr Twm o'r Nant y mae'r Trioedd hyn a'r rhai a'u canlynant dan enw Trioedd Llogell Rhison'), 'Trioedd Taliesin o'r un Llyfr' (with added note 'Trioedd Llogell Rhison yn Llyfr Twm o'r Nant'), '[Trioedd] Eraill o amryw lyfrau' (with added note 'Twm o'r Nant, D. Ddu, &c .'), 'Trioedd Ynys Prydain o Lyfr D[afydd] Ddu Eryri', and 'Llyma Drioedd Llogell Rhison o Lyfr Mr. Davies o Benegos' (with added note 'y mae y rhain yn Nosparth y Ford Gron cynn amser Llogell Rhison'). P. 81 contains a list of the contents of pp. 87-121, and is followed by pp. 83-4, a series of miscellaneous triads, p. 85, a note headed 'Mesurau Cerdd dafawd', pp. 87-112, a series of triads entitled 'Trioedd Ynys Prydain', and pp. 112-21, a list of 'Dewis bethau Taliesin', three triads, eight stanzas of Welsh verse entitled 'Cân y Magwraeth' and attributed to Gwion bach, further miscellaneous triads, and a series of triads with the superscription 'Trioedd o Lyfr Mr. Panton'. Pp. 133-202 contain a series of one hundred and twenty-six triads with the superscription 'Llyma Drioedd Ynys Prydain sef ydynt Trioedd Cof a chadw a gwybodaeth am hynodion o Ddynion ac o bethau a fuant yn Ynys Prydain ac ar ddamwain a damcwydd i Genedl y Cymry' reputedly compiled by Thomas Jones of Tregaron ['Twm Siôn Cati'] in 1601 from the works of Caradawc Nant Garfan and Ieuan Brechfa and copied [by Edward Williams] from a volume belonging to the Reverend Mr. Richards of Llanegwad [co. Carmarthen] then on loan to Rys Thomas, printer, and the Reverend Mr. Walters of Pont Faen, Glamorgan (see the notes at the beginning and end of the series on p. 133 and p. 202). This is the series of triads generally known as 'The Third Series of Trioedd Ynys Prydain' the text of which was published in The Myvyrian Archaiology of Wales . . ., vol. II, 1801, pp. 57-75. (continued)

Other items in the volume include a note on the development of 'These Triades' [i.e. the Trioedd Ynys Prydain] (125), an incomplete list headed 'Pedwar Cerddawr Graddawl' (126), a note on the composition of a barony or manor (131), a list of the twenty-four knights of King Arthur's court ('Llyma enwau y pedwar marchog ar hugain a fuant gynteifion y Ford Gron gydag Arthur ymherawdr Ynys Prydain yng Nghaerllion ar wysg (o Lyfr Twm o'r Nant, 1799)') (209-14), further triads including 'Trioedd Barddas' and 'Trioedd yr Ellyllion A wnelynt Ryfeddodau a gwyrthiau . . .' (217-18, 221-2, 229-38, 241-3, 246-7, 258-65, 272, 283-5), lists Of 'y saith gelfyddyd wladaidd' and 'y saith gelfyddyd ddinesig' (219), an English translation of triads 1 and 2 of 'Trioedd Ynys Prydain' (222-3), a further list of King Arthur's knights ('Pedwar marchog ar hugain oedd [yn] llys Arthur ac arnynt gyneddfau naturiol o orchest bob un mwy nog ar arall . . .') (225-7), an anecdote relating how Papists set fire to the house and outbuildings of Dr. William Morgan, incumbent of Llanraiadr ym Mochnant, in an attempt to prevent him proceeding with his task of translating the Bible into Welsh extracted allegedly 'o Lyfr Dyddgof y Parchedig Evan Evans y Prydydd Hir . . .' (254), a sketch plan relating to a furnace and forge (270-71), a short Welsh - English word list (278), a list of 'Dewis bethau Gwion Bach' (283), notes relating to the development of Welsh strict-metre systems or schemes (291), notes relating to the so-called 'Moelmutian' triads and laws (293-300, and ? 309-12), and transcripts of, or extracts from, miscellaneous Welsh strict- and free-metre poems including stanzas, etc., attributed to Gryfydd Gruc, Rhys Tyganwy, D[afydd] ap Edmund, Gwawdrydd, Sir Thomas Jones (circa 1600), D[afydd] ab Gwilym, and Gwion Bach (219-20, 227-8, 253, 257, 279-82). In one instance notes have been written on the dorse of a printed leaflet containing proposals for publishing 'A Welsh Paraphrase on St. Matthew's Gospel or a Translation of Dr. Clarke's Paraphrase . . .' by the Rev. Richard Jones, curate of Ruthin, in 1799, and in another on the dorse of a printed leaflet announcing the printing of Edward Williams's two volumes of English verse Poems Lyric and Pastoral.