A manuscript written, 1674-1676, by Gwilym Pue [Puw], a member of the Roman Catholic family of Puw of Penrhyn Creuddyn, Caernarvonshire [D.W.B. (1959), p. 819] and containing a miscellany of verse and prose, much of it by Gwilym Pue himself. The title is given as 'Opera et Miscellania Domini Gwiliellmi Pue Cambrbrittanni M.B.' and 'Brithwaith Gwillim Pue M.B. Hefyd Gerdd yr un gwr a beirdd ereill Anno 1674: Pump o Garole Mr White, Hefyd Dau Garol o Fûchedd y Santes Gwenfrewy o waith Gwillim Pue 1674 M.B.,' and the volume is similar in content to, but not identical with, NLW MS 4710B, another volume written by Gwilym Pue but slightly later in date (1676). The contents following after 'Cyfrwyddiad y llyfr. Index libri' (to p. 648), a sketch of a harp ('Lyra' 'Telyn') and 'Trefn Cowair Telyn' are briefly as follows: pp. 1-44, 'Deongliad ar y Miserere', and pp. 45-61, 'Deongliad ar y Magnificat', two series of 'cywyddau' by Gwilym Pue; pp. 62-75, more 'cywyddau', by Gwilym Pue; pp. 76-196, 'Awdwley ag Englynnion', and also 'cywyddau' by Morgan Gwynn (Taliarys), Gwilym Pue, Thomas Williams, Edw. Bach o Dreddfyn [sic], Meredydd ap Prosser, Syppyn Cyfailiog, William Egwad, Siôn Cent, Thomas ap Ieuan Prys, Hugh Min, Howel Dafydd, Gruffydd ap Euan llewelyn Vychan, Dafydd ap Gwilym, Edward Turberuille, Thomas llûn, Taliessyn, Siôn Brwynog, Dafydd Ddu Hir Addig [sic], Iuan Tew Brydydd, Ieuan Daylwyn, Howel Da: ab Iuan ap Rhûs, Llewelyn ap Howel ap Ieuan ap Gronw, Gryffyth llwyd ap Da: ap Einion, Dafydd Nam'or, Dafydd ap Edmund, Syr Dai: llwyd Alijs Deio: Scolhaig, Rhus a [sic] Parry, Sieiles ap Siôn, and Twm Siôn Catti Alias Thomas Jones Esqr.; pp. 203-360, 'Prophwydoliaethay, Brudiay a Daroganay Britannaeg a Gasglodd yn Ghûd Gwilym Pue', 1674-1675, attributed to Taliessyn (Fardd), Rhûs Fardd, Merddyn (Merddyn Emrys, Merddyn ap Morfran, Merddyn Wyllt), Dewi Sant, Gronw Ddu o Fôn, Molwngwl Abad, y Bergam, Robin Ddû o Fôn, Dafydd Gorllech, Iolo Goch, Rhys Nammor, Dafydd Nammor, Edward ap Rhys, Llewelyn ap Owain ap Cynric Moel, Rhys llwyd ab Einion llygwy [sic], Llewelyn ap Ednyfed, Ieuan Brydydd Du, Ieuan leia, Rhys Goch or Yri, Ieuan yr offeiriad, Llewelyn ap Mredydd ap Dywydd, Llewelyn Cetifor, Hugh Pennant, Dafydd llwyd llewelyn ab Gryffydd, and Rhys y lashiwr; pp. 365-430, 'Carmen Euangelicum, Cerdd Efangylawl Gwilym Pue, Buchedd yn Arglwydd Iessu Grist. . . 1675' in the form of a series of 'cywyddau'; pp. 452-47 (inverted text), 'Enwey Brenhinoedd Prudain' and 'Twyssogion Cymry'; pp. 453-5, 'Enway Twysogion Cymry A Gadwodd Ei Braint yn ôl Cadwalader Frenin' . . . and 'Enway Y Brenhinoedd Lloegr o Amser y Cwncwerwr o Normandi' in the form of 'englynion' by Gwilym Pue; pp. 457-91 'Caroley Mr Richiard White, Merthyr', five in number, followed by 'Buchedd Gwenfrewy' and other carols by Gwilym Pue, with one by John Jones; pp. 495-514 'Pllaswyr Iessu A Gyfleuthodd Gwilym Pue or Saesnaeg Ir Gymmraeg'; pp. 515-28, 'Erfynnion neu Littaniau Aur; pp. 529-54, '1676, Panegyris Penryniana, Llwyrwis Penrhyn (Mawl Penrhyn) o waith Gwilym Pue; pp. 563-579, 'Achau Gwilym Pue o rann Tad a Mam a Theidiau a Neiniau' followed by 'Achau Ieirll a Marqwezis Caerfrangon', etc.; pp. [583]-618 (recte 608), 'De Sceletyrbbe uel Stomacace or A Traetice of the Scorbut by William Pue Gentelman [sic] gathered oute of Seuerall Authors . . . 1675'; pp. 619 [609]-624, 'Another Discourse of the Scorbute by William Pue Gentleman, 1675'; pp. 625-48, 'Enchiridium Chatechisticum siue Chatechismus pro Pueris Scolaribus' again by Gwilym Pue, in two parts; pp. 649- 60, 'Execitium Quotidianum, Ymarfer Beunyddawl'; and p. [661], 'Gweddi Foreuawl' and 'Gweddi Brud Gosper'. Some of the pages, particularly the headings, have been embellished by Gwilym Pue.