Travel journal, [late 1790s] (watermark 1796), of Richard Cust [stationer and gentleman naturalist, of Westminster and Carlisle], containing his 'Observations on the Picturesque Scenery of North Wales in the Autumn of the year 1783' (ff. 7-73 passim), together with thirteen monochrome wash watercolours of landscapes viewed (ff. 15, 16, 23, 25, 26, 28, 35, 41, 42, 46, 47, 49, 50). The journal primarily describes Cust's impressions of the scenery in terms of the ideals of the picturesque and the sublime; the entries are undated.
As explained in the introductory section (ff. 2-5) the Observations were transcribed by Cust from his original 1783 travel journal, with the illustrations being based on brief sketches. Cust and his unnamed companion(s) travelled by coach from London (f.7) to Llangollen (ff. 8 verso-9), then via Conwy (f. 10) and Bangor (f. 13) to Anglesey (ff. 13 verso-17 verso) and Caernarfon (ff. 19 recto-verso, 22 recto-verso). From there they went on excursions up Snowdon (ff. 24-34 passim) and to [Aberglaslyn] (ff. 34 recto-verso, 37-38) and Llanbenys [Llanberis] (ff. 39-40 verso, 43 recto-verso, 44 verso-51 passim, 54-55 verso), before returning to Conwy (ff. 57 recto-verso, 59-61 verso) and Llangollen (ff. 64-65 verso, 68-69, 70 verso, 72-73). There are descriptions of the castles at Caernarfon (ff. 19 recto-verso, 22 recto-verso), Dolbadarn (ff. 40 verso, 43, 55) and Conwy (ff. 57 recto-verso, 59-60); four of the watercolours also depict Dolbadarn Castle (ff. 41, 42, 46, 47), the others are mostly views of mountains and rocky outcrops. The narrative is incomplete and breaks off after a description of the River Dee at Llangollen (f. 73); additionally, eleven pages have been left blank to provide space for further illustrations (ff. 20, 21, 29, 32, 36, 53, 56, 58, 66, 67, 71, usually with indicative captions written in pencil on the otherwise blank versos).

An album of miscellaneous press cuttings from Welsh and Welsh American newspapers compiled by John Jones ('Myrddin Fardd'). The titles include 'Y Diweddar Dr Spinther James, Llandudno', 'Y Parch. W. Elvad Davies, DD, Clydach Vale', 'Y Gwir Anrhyd[eddus Alfred Thomas] Arglwydd Pontypridd', 'Matho Dafydd. Stori fer Seiliedig ar Ffeithiau' (by the Reverend T[homas] Morgan, Skewen), 'Marwolaeth D. R. Jones, Cambria, Wis.', 'Yr Athraw J[ohn] M[orris] Jones a'i Feirniaid Americanaidd', 'Schubert, Papyr a Ddarllenwyd yn Nghyfarfod Cymdeithas y Cymreigyddion, Utica, N.Y...... Gan Proff. Samuel Evans' 'Gosod Carreg Sylfaen Eglwys St Iago, yn Llawr y Bettws ....', 'Yr Athro Kuno Meyer. Llythyr Pigog oddiwrth Nofelydd', 'Hawddgaraf Hedd y Geiriog', 'Hynafiaethau Plwyf Llanrhaiadr-yn-Nghinmeirch', 'Adgofion am Waen Gynfi, Arfon, Gc' (by Humphrey Griffith, Utica, N.Y.), 'Pererindod i Fynachdy Llanthony', 'David F. Lewis, Cleveland, O.' (by Edward Blythin), 'Cwm Ucha' [in the parish of Llanberis] (by O. W. Rowlands, Ipswich, S[outh] D[akota] ), 'Llyfrau a Llenorion. Cyrnol John Jones [Maesygarnedd]', etc.

A file of correspondence and papers discussing proposals to establish an environmental gallery at Llanberis.

Miscellaneous notes and memoranda by William Pamplin, including brief notes on tours in various parts of North Wales, 1852-1855, and sketches of Llanberis, Llanfor and Pennant (Montgomeryshire) churches.

A manuscript in the hand of David Ellis, Cricieth, containing 'cywyddau' by Dafydd ddu o Hiraddyg, Dafydd Nanmor, Dafydd ap Edmwnt, Tudyr Aled, Gutto'r Glynn, Sion Phylip, Ifan ap Tudyr Penllyn, Iolo Goch, Sion Tudyr, Wiliam Lleyn, Gruffydd ap Ieuan ap Lly'n Fychan, Thomas Prys, Risiard Phylip, Syr Owain ap Gwilym, Huw Arwystl, Gruffudd Gryg, Doctor Sion Cent, Dafydd Llwyd ap Llywelyn ap Gruffudd, Dafydd ap Gwilym, Llywelyn ap Guttyn, Lewys Glyn Cothi, Morus Dwyfech, Syppyn Cyfeiliog, Lewys Môn, Gruffudd ap Ifan ap Llywelyn Fychan, Owen Gwynedd, Tudyr Penllyn, Deio ap Ifan Ddu, Rhydderch ap Ifan Llwyd, Rhys Goch Glann Ceiriog, Mredydd ap Rys, Robin Dyfi, Ifan ap Howel Swrdwal, Bedo Aeddrem, Evan Tew, Gwilym ap Ifan hen, Edmwnt Prys, Ifan Brydydd hir, Llywelyn Goch ap Meirig hen, Iorwerth Fynglwyd, Gutyn Owain, Gruffydd Hiraethog, Howel Dafydd Llwyd ap Gof, Ifan Llwyd Brydydd, Rees ap Ednyfed, Ifan ap Hywel Swrdwal, Llowdden, Rhys Cain, Dafydd Jones, Edward Urien, Hywel ap Reinallt, Ifan Dewlwyn, Syr Dafydd Trefor ('Person Llaneugrad') Sion Ceri, Lewys Daron, Gruffudd ap Tudur ap Howel, Rhobin Ddu, Hywel ap Reinalld, Ffoulk Prys ('Mab y Parchg. Edmwnd Prys ... Person Llanllyfni a Chlynog'), Tudur ab Wiliam Fychan, Huw Penant, Hywel Cilan, Gruffydd Phylip, Cadwaladr Cesel, and Dafydd ap Ifan ap Owen ('aer yr Hendrefawr'). At the beginning of the volume is an alphabetical index ('Cynhwysiad egwyddorol') of first lines, and at the end a progressive list of titles and an alphabetical list of poets, together with their floruit dates. The volume is said (p. vi) to have been transcribed at Ty du, Llanberis, in July 1766, from a manuscript of William Phylip, Hendref fechan, Dyffryn Ardudwy (Cardiff MS 19, part II). There are annotations, variant forms and additions by the scribe (David Ellis), by P[eter Bailey] Williams, Llanrug (1763-1836) and O[wen] W[illiams] ('Owain Gwyrfai'), Waunfawr. The spine is lettered 'David Ellis MS'.

Miscellaneous papers and fragments from the collections of W. J. Roberts ('Gwilym Cowlyd'), and W[illiam] Hobley, including lists of contents of a manuscript containing Welsh poetry compiled by Lewis Morris; 'Cyfrinach y Beirdd'; vaticinations by Merthyn Ddu and Molengol Abad y Werddon; notes on Llanberis and Margaret verch Evan of Penllyn addressed to Dl. Gregory, Dol Badarn Castle Inn; a transcript of Rhesymau ysgrythyrol yn profi mae dyledswydd pob math o wrandawyr yw cyfranu yn ol eu gallu at gynhalaaeth cysyrus ei gweinidogion (Thomas Gouge, 1693); prospectus of Beibl Teuluaidd, Mawrth 5 1827; 'Cywydd o glod i E. Sharpe, ysw., am ei ymdrech diflino er ffurfiad Rheilffordd o Gonwy i Llanrwst'; a list of books at Penrhyn Aberffraw; copies of letters relating to the 1863 Eisteddfod at Swansea and to an eisteddfod to be held at Wrexham; an offprint from the Cambridge Tribune, 23 September 1899, containing an account of the installation of Elizabeth Driver as a bard of the 'warranted gorsedd' on the banks of Llyn Geirionydd; notes on the career of Henry Jonathan, Caernarvon; a letter by R. Gwilym Jones from Shaistaganj, India, 1925; an appeal by Samuel Roberts ('S.R.') to H. Humphreys, Caernarvon, for a subscription towards his Postal Reforms testimonial; and a County Council election address by John Blackwell, Llanrwst, 1888, printed by W. J. Roberts.