A notebook in the autograph of R. Prys Morris ('Robyn Frych') [Dolgellau] containing copies of two 'cywyddau' by Edmwnd Prys ('Cywydd Priodas' beginning 'Rhai a gar yn rhagorawl', 1623, and 'Cywydd Marwnad Sion Phylip Bardd ac Athro' beginning 'Rhodd Dduw gwyn yw rhwydd ganu', 1620), and a note by R. Prys Morris referring to the death of his mother, Elinor Morris, 12 September 1875.

A manuscript in the autograph of Dr John David Rhys (1534-1609) containing mainly notes relating to castles, historical figures, etc.; together with poetry of Siôn Tudur (p. 5)

A manuscript consisting of a number of ? home-made note-books or booklets containing material in the hand of Edward Williams ('Iolo Morganwg') bound together into one volume. P. 1 (which with pp. 2, 47-8 formed the covers of booklet 1) is inscribed 'Cymreigyddyn Rhif I, Silurian Words and others, miscellaneous'. The contents of pp. 3-24, 45-7 (other pages blank) of this booklet consist almost entirely of groups or lists of miscellaneous Welsh words with, variantly, English or Welsh equivalents or definitions, explanatory notes, phrases or poetic extracts to illustrate usage or meaning, etc. Also included is a list of words and phrases illustrating differences of usage in the Silurian and Venedotian dialects. P. 49 (which with pp. 50, 67-8 formed the covers of a second booklet) is inscribed 'Cymreigyddyn Rhif II. Casgliadau Llythyregawl' and (in the hand of Taliesin Williams) 'Poets and Poetry appertaining to Merthyr Tydvil Promiscuously inserted Mai 13, 1831', but the booklet is blank except for p. 68 which contains a note on the language and style of the Gogynfeirdd and the probability that such a poetic style had been introduced into Welsh poetry through Gruffudd ap Cynan's connection with Icelandic sources. P. 69 (which with pp. 70, 119-20 formed the covers of a third booklet) is inscribed 'Cymreigyddyn Rhif V (To go with the Salmau London proof paper)' and (in the hand of Taliesin Williams) 'Bannau'r flwyddyn. Tynghedfen Taliesin'. Most of this section is blank but pp. 71-5, 78-9 contain material similar to that which is found on pp. 3-24, 45-7, and also some verse attributed to Taliesin. P. 121 (which with pp. 122, 169-70 formed the covers of a fourth booklet) is inscribed 'Cymreigyddyn Rhif VI', but the section is blank except for pp. 122-9 which contain material similar to that on pp. 3-24, 45-7, 71-5, 78-9. P. 171 (which with pp. 172, 221-2 formed the covers of a fifth booklet) is inscribed 'Extracts from E. Llwyd's MS. in Mr. Nichol's possession', 'Topographical Anecdotes of Glamorgan, & c.', 'Gallia Togata, Celtica, & Braccata from Littleton. Last page of this book', and (in the hand of Taliesin Williams) 'Pit Falls and Subterranean Rivers in Glamorgan'. The greater part of this section is blank but pp. 173-9, 181-5 contain lists or groups of Welsh words with notes such as those noted in the preceding sections (some being associated with specified areas) and of names of dwellings or topographical features in specified parishes or counties in Wales, a sketch plan relating to a cross in Cowbridge churchyard, a brief note relating to Edward Llwyd, and a geological note, pp. 187-8, notes headed 'Topographical Anecdotes of Glamorgan', and pp. 220-21, a list of Latin proper names, etc., relating to Gaul, the Celts, the Cimmeri, etc., 'from Littlelton's Dictionary'. Frequently interspersed amongst the material on pp. 173-9, 181-5 is the name of Edward Llwyd and this material may have been extracted from one of his manuscripts as indicated on the cover to the section (p. 171). P. 223 ( which with pp. 224, 271-2 formed the covers of a sixth booklet) is inscribed '1. Extracts from Ystatut Rhuddlan. 2. Extracts from Hywel Dda end of this book reversed. 3. Historical Fragments from various MSS. Welsh'. The greater part of the section is blank but pp. 226-30 contain legal words, phrases, and extracts from a Welsh version of the Statute of Rhuddlan and ? other sources with English equivalents or definitions of the words and phrases, and pp. 269-70 miscellaneous extracts naming early, some legendary, Welsh poets, etc., and a transcript of the explicit of a copy of a version of the laws of Hywel Dda transcribed by 'Dafydd sgrifennydd i Iorwerth vab Llywelyn vab Tudur' giving the pedigree in direct line of the said Llywelyn. Pp. 273-84 (without previous covers) contain extracts from, or comments on statements in, [Theophilus Jones: A History of the County of Brecknock, vol. 1, Brecknock, 1805]. P. 285 (which may have been one of the covers of the booklet now paginated 293-340) is inscribed 'Philology - Bardism. Historical Anecdotes, &c., a few proverbs Glam. Gwasgargerdd Iolo Morganwg. Criticisms by E. Wms.', and (in the hand of Taliesin Williams) 'Pennillion Arwest. cynghanedd copied but not the pennillion (several)'. The greater part of the section is blank but pp. 292-308 contain Welsh words with notes of a varying nature thereon, poetic extracts to illustrate some of these words or quoted in connection therewith including transcripts of 'englynion' attributed to Raff ab Robert, Gwerfyl Mechain, Syr Siôn Gruffydd, and Thomas Llywelyn, a list of Welsh words which in Monmouth usage had an initial G but which in Glamorgan were used without this initial consonant, notes on stones called variously Maen Meian, Maen Gorchest, Maen Ambor, Maen Gobaith, and Gwal y Filast, seven four-line stanzas of Welsh free-metre verse by [Edward Williams] 'Iolo Morganwg', further stanzas of Welsh free-metre verse, brief notes relating to mutations in Welsh compound words, etc.

A manuscript in the autograph of Evan Evans (Ieuan Fardd) containing a copy of the Rev. Richard Farringdon's 'Numismata Dinlleana or a brief account ... of certain ancient and curious medals found at Dinas Dinlle in Carnarvonshire', including detailed descriptions of each medal, with sketches of the lives of the Emperors depicted upon them, and also an account of Dinas Dinlle (ff. 1-38); a 'Botanologium', with names of plants in Latin, Welsh and English (ff. 39-58); poetry, by poets including Tudur Aled and William and Siôn Phylip (ff. 59-82); pedigrees (ff. 83-96); a letter, dated 26 October 1769, from Richard Morris, at the Tower of London, relating to books of ?Goronwy Owen (ff. 121-122); a note by Ieuan Fardd, 'On my 38th birthday, June 1st 1769' (f. 123); and various other extracts, etc.

[A transcript by 'Myrddin Fardd' of] 'Owdl Merch Glaf er Coffa Crist a'i Ddioddefaint' by Katring uch Gruff ap Hoell o Landdyniolen.

A volume of poetry, chiefly in strict metre, written largely in the autograph of Owen Gruffydd (?1638-1730) between 1677 and 1692. Most of the poems are by Owen Gruffydd, but the following poets are also represented: Robin Ddu, Dafydd Gorllech, John Roger, Sion Phylip, Sypyn Cyfeiliog, Dafydd ap Gwilym, William Phylip, Gyttyn Owain ('medd rhai' 'Meredydd ap Rhys' in another hand), Ifan Tew Prydydd, Huw ab Iva[n], Bedo Brwynllysg, Edmwnt Prys, Edward Morys, Matthew Owen and Hugh Morys. There is a list of contents at the beginning and the poems have been correspondingly numbered. There are 'penillion' by William Elias on p. 309b. John Jones ('Myrddin Fardd') has supplied a lacuna in the manuscript from Peniarth MS 124. Almost all the 'cywyddau' in this manuscript, but not the 'englynion' and the poems in free metre, are to be found also in Peniarth MS 124, which is later in date than the present manuscript and written in a different hand. The pages have been numbered by Dr J. Gwenogvryn Evans and his report on the manuscript is in J. Gwenogvryn Evans MS 70a (under 'M[yrddin] F[ardd] 5'). If the information given on pp. 1 and 50 is correct, Owen Gruffydd was born in 1638. A note at the end (p. 238) of his elegy to Sir Roger Mostyn (d. 1690) states that the poet received fifty shillings for the 'cywydd'. There is a folio missing after p. 36 and another is wanting before p. 53.

A volume of papers of David Jones ('Dewi Fardd'; 1708?-85), Trefriw, of which many are in his own hand. They comprise 'Gofuned Llythyr Dewi Fardd at ei Etholedig Gyfeillion'; a letter from David Jones to his friends ('Frodur a Chwiorydd yn ol y Cnawd'), 1751/2 (the writer's association with Methodism) (published in Cymru, 1907, pp. 185-6) (together with verses [?on 'Breuddwyd Gwion']; poetry by Rhys Goch o Ryri, Richiart Parry, T[homas] E[dwards] ('Twm o'r Nant') Humphrey William, Lloyd Ragad, Dafydd Jones (Dafydd Sion Dafydd), Morys Dwyfech, Edmund Price 'Arch diagon', and Ellis Robert, and anonymous 'carolau' and 'cerddi'; an extract from a treatise on herbs; letters to David Jones from Tho[ma]s Edwards ['Twm o'r Nant'], Pen isa'r dre [Denbigh], 1766 (a parcel for the recipient and the enclosed writing), William Sion 'o fyrun sauth ymlwy maun twrog' [Maentwrog] undated (the delivery of books to Owen Dafydd 'o faun twrog'), Dafydd Ellis, Ty du, 1766 (the sale of books on behalf of the recipient), Owen Roberts, 1778 (the publication of an interlude), Roger Thomley, Flint, 1746 (enclosing 'englynion', a desire to visit the recipient), Hugh Evans, Caernarfon, 1768 (the receipt of a book of 'cywyddau', subscriptions towards the printing of Blodeugerdd [Cymry] and Drych y Cymro), and Richd. Edwards, 'Y Tayliwr', 1744/5 (a request for a 'cywydd' by Ed[war]d Maurice, proposed publications by the recipient); holograph letters from Dafydd Jones to his wife Gwen ych Richard from Shrewsbury (Mwythig), 1758 (errors by the compositor [of Blodeugerdd [Cymry]), and to David Jones, painter, Holborn, London, 1771 (the recovery of monies due for Blodeugerdd [Cymry] and the publication of the second part); press cuttings of 'englynion' published in Yr Herald Cymraeg, 1756; an interpretation by [John] Lloyd of Hafodunos [Llangernyw] of the law regarding errant sheep (printed by Dafydd Jones at Trefriw, 1778); and Cynhygiadau i Brintio amryw o Lyfrau, drwy gymorthiad fy 'ngyd Wladwyr Mwyneiddwych (Harfie, Caerlleon, n.d.), with verses entitled 'Breuddwyd Gwion' (published in Cymru, 1907, pp. 186-8). Much of the contents of the manuscript was transcribed by David Evans, Llanrwst in Cwrtmawr MS 117.

A manuscript, 'ex Autographo D'ni H. Salesbury de Llan rwst penes dnm R. Salesbury de Rug', containing pedigrees and poetry.
Pp. 1-22 are in the hand of David Parry, and pp. 23-36 probably also in his hand. The poets cited include Taliesin, Sion Tudur and Dafydd ab Edmwnd.

An imperfect manuscript in several hands containing Welsh poetry, including the works of Tudur Aled, Siôn Brwynog, Simwnt Fychan and others.

A manuscript containing poetry by Bedo Brwynllys, Dafydd ab Edmwnd, Dafydd ap Gwilym and others in the hand of Samuel Williams.

A manuscript containing poetry by Dafydd ap Gwilym, Guto'r Glyn, Dafydd ab Edmwnd and others (pp. 1-102 (the text beginning at p. 99 being a fragment only)); and Myrddin's 'Vaticinium' (pp. 131-146).
The manuscript is written in three different hands: pp. 1-102 belong to the third quarter of the sixteenth century; pp. 103-130 to the fourth quarter of the sixteenth century; and pp. 131-146 are in the hand of Sir Thomas Wiliems in his earliest style, c. 1576.

A manuscript containing poetry in praise of Gruffydd Dwnn, the bulk of it being in the autograph of Gruffydd Dwnn, though pp. 12 (Rhisiart Fynglwyd), 19 ('Syr John Teg'), 22 (Sion Brwynog), 41, 69, 108, 120 (Syr Owain ap Gwilym), 73, 74 (Morgan Elfael), 132c (Huw Llŷn), and 145 (unattributed, possibly autograph) are autograph works by the respective authors. Many of the poems are dated. Pp. 147-156 are in the holograph of Huw Llŷn (see notes on pp. 149, 153). P. 17 is inscribed 'ai kant pan oeddid yn kwplav y plas [nyr ystrad merthyr] o. k. 1533'. An inscription on p. 49 notes Syr Owain ap Gwilym as being 'ap Ieuan o dal y llynn' and, in relation to the poem, 'ai gwnaeth i ryffydd dwnn o hiraeth am rvffydd ag o eisse i weled ac ai danovones ynysgrifenedig i ryffyth donn' (see Peniarth MS 70, which evidently once belonged to the Gruffydd Dwnn Collection). P. 77 is inscribed probably in the hand of Gruffydd Dwnn (relating to the date 1533) 'pan oedd rys [the eldest son of Gruffydd Dwnn] yn 11 mlwydd oed. I mayr kywydd hwnn yn ysgrifenedig mywn llyfr arall i ryffydd Dwnn kyfaillt y llyfr hwnn'. On p. 83 the name of 'syr John teg' has been crossed out and that of 'Gyttvn Owein' [Gutun Owain] substituted, though Gutun Owain was dead long before the poem's date of 1526; the text, however, appears to be in the autograph of Gruffydd Dwnn. The last line of the poem beginning at p. 87 may not belong to the first as pp. 89-90 are missing. P. 104 is inscribed, apparently in the hand of Huw Llŷn in relation to the author of the work, Morus Dwyfech, 'ai kant pann oedd o. k. 1560 ac ynn hir llyn i gwnnaeth ef y ddau englynn hynn'. P. 126 is inscribed in the hand of Gruffydd Dwnn 'I mayr varnad honn yn ysgrifenedig yn y llyfr lle may englynyon yr eryr o law y gwr ai gwnaeth yr hwn lyfr a wnaeth gryffydd dwnn iddo i hyn yn gyntaf oll ond vn llyfr arall'. P. 144 is inscribed in the hand of Gruffydd Dwnn 'gyttvn owein ai kant i ryffydd dwnn' (although, according to the date of the poem, Gruffydd Dwnn was an infant at the time of its writing). P. 147 is inscribed (in relation to Wiliam Cynwal, the author of the englynion) 'a Gant y chwech englyn hynn yni ynnwedic lythr at ruffudd dwnn 1566' (only the fifth and sixth englyn of this series remain).
This is one of the manuscripts mentioned in Mostyn MS 184. Gwenogvryn (J. Gwenogvryn Evans, Report on Manuscripts in the Welsh Language, vol. II, part II (London, 1903), p. 503) debates whether the englynion addressed to 'Gr: Dwnn o Gydweli' on at pp. 132-132b are in the hand of Owain Gwynedd.

A manuscript containing poetry by Cynddelw, Bleddyn Fardd, Dafydd Nanmor, Bedo Aeddren, Dafydd ap Gwilym and others. Pages 1-27 are in the autograph of James Davies ('Iaco ab Dewi'); pp. 29-121 were 'wrote by J. Morgan' (p. 121); pp. 122-126 are in the hand of Samuel Williams; pp. 127-41, 144-153 are in the hand of W[illiam] Maurice; and p. 154 is in the hand of the Reverend Moses Williams.

A manuscript containing poetry of James Rhys Parry ('Eos Eyas' or 'Eos Ewyas'; fl. 1570?-1625?).

A transcript of Cardiff MS 24 (Phillipps MS 2954), being poetry by Morgan Llwyd (1619-59) (cf. Gweithiau Morgan Llwyd o Wynedd, cyf. 1, gol. Thomas E. Ellis (Bangor, 1899), pp. 3-111). Many of the items have been crossed out (although they can still be read) and pp. 67-8 and 86 of the transcript appear to be wanting. There are a few notes in pencil by J. H. Davies.

A manuscript, in several hands, containing the poetry of Wmffre Dafydd ab Ifan and others, including Siôn Tudur, Siôn Phylip, Rhys Cain and Dafydd ap Gwilym.
Pp. 1-62 are said to have been written in 1691 by Siôn Rhydderch (John Roderick) of Cemaes (see p. 62); pp. 63-77 are in an earlier hand; and pp. 79-82 are in the hand of Dr John Davies, Mallwyd.

A manuscript containing poetry of Siôn Cent, Siôn Mawddwy and others.

A manuscript, written in the same hand as Llanstephan MSS 123-125, containing poetry, the poets cited including Taliesin, Iolo Goch, Dafydd ap Gwilym, Lewis Glyn Cothi and Siôn Phylip. The first half of the cywydd at p. 35 is missing. The poems at pp. 37, 40, 43 were copied from imperfect originals and are full of lacunae. That which appears at p. 292 is apparently not the beginning of the poem as there is a page left blank between this and the previous poem. On pp. 633-646 is an index, with the poets' names arranged alphabetically, 'made by Richard Morris for Wm: Jones F.R.S. in London 1746.'

A manuscript written after 1643 (see p. 199) containing poetry, the poets cited including Iolo Goch, Ieuan Tew Brydydd, Wiliam Cynwal, Lewis Menai and Siôn and Rhisiart Phylip. An index, with the poets' names arranged alphabetically, has been added at pp. 641-651 by Richard Morris 'i Wm: Jones F.R.S. yn llundain 1746'.
The original or originals of this manuscript were apparently often defective as many lacunae and imperfect lines occur: the beginning of the poem at p. 139 is wanting and the rest is very imperfect; the beginning of the poem at p. 181 is wanting as that which is noted as the first line here is in fact the 8th or 10th line; 'A chanoes ac ychwaneg a ranno dvw ir wen dêg' is added in a later hand on p. 316; an addition in the margin at p. 435 ends the poem with 'do'n ifanc ai i nefoedd'.