An arithmetic example and exercise book based partly, according to a note on the first page, on 'Treeby's Astronomy' [i.e. S. Treeby: The Elements of Astronomy ..., London, 1821, or Upwards of seven hundred questions in Treeby's Elements of Astronomy ... [London, 1822]].

Commonplace book of James Griffiths of Nantmel, co. Radnor, and Brecon, excise officer, father of Richard Griffiths (see MSS 22202B-22203B), containing miscellaneous accounts, 1818-1837, family records for 1736-1835 compiled [c. 1820s]-1830s, and miscellaneous notes on meteorology and astronomy; together with further notes on family history added by Eveline M. Lewis, 1935 (ff. 33-5).

A volume of holograph lectures by John William Thomas ('Arfonwyson') on 'Seryddiaeth', 'Deddv Rheswm a Chyvraith', and 'Gwybodaeth Gyffredinol', delivered during the period 1835-1836. One of the lectures was delivered to the London Cymreigyddion Society, 7 January, 1836.

One hundred and forty-six holograph letters, 1846-1847 and undated, written to A. C. Ramsay. The writers include D. T. Ansted (payment for the recipient's professional services to the corporation of Liverpool), Ann Aveline, Oatlands (William Aveline's eye trouble), J. T. Brown?, Berwick ( the writer's professional activities), R. Chambers, Edinburgh (raised beaches in Wales), C. C. Cookman [from Dolaucothi] (violets from Mrs. Johnes), J. Crombie, Edinburgh (a lecture to the Royal Institution, personal), John Crombie, Edinburgh (Dr. Arnott's lecture, the recipient's professorship, news of friends), Geo. Fossett, Aberystwyth (geological studies, an inspection of Cwm Ystwyth lead mine, personal), Eleanor Howden [ from Edinburgh and London] (personal, the writer's visit to France), Oliver Howden, Edin[burgh] (the writer's wedding), Elizabeth Johnes, Dolau Cothi (a search for gold on Gogofau, Glanyrannell sale, news of friends) ( with botanical specimens enclosed), 'Betha' Johnes (thanks for a book, the solution of a riddle, personal), D[avid] Landsborough, Saltcoats (the publication of the writer's 'Excursions to Arran'), Robert Mallet, Dublin ( observations on volcanic vents, earthquakes, etc.), B.? Marshall (an invitation to dinner), J. P. Nichol, Observatory [at Dowanhill], etc. ( astronomical maps and publications), Lyon Playfair (the publication of an article, personal), M. E. Playfair (an Admiralty report by Lyon Playfair, Jenny Lind's recitals in London, the recipient's professorship, Lyon Playfair's health), C. Puggaard, Bewdley, etc. (a geological tour of Wales, personal), E. Ramsay, his mother, Glasgow, etc. (family news, the writer's visit to Arran, the recipient's professorship, the business affairs of J. C. Ramsay), Eliza Ramsay, his sister, [Glasgow and] Edinburgh (personal, news of friends, the business affairs of J. C. Ramsay), J. C. Ramsay, Trinidad (the future of the writer's business, personal), W. Ramsay, Glasgow, etc. (the business affairs of J. C. Ramsay, the recipient's professorship, observations on a visit to the Highlands, the affairs of the North and South Wales Bank, the solution of a geological problem, Frank McGill's concert, a sewerage scheme for Edinburgh, news of friends), James Sharpe [from Glasgow] (business affairs, deaths from typhus fever in Glasgow, the recipient's professorship, news of friends), J. Trimmer, Dublin (the writer's work as inspector of relief committee in Cavan and Fermanagh), W. Walton, Bath (an invitation), Anna Maria Williams, Llandovery (family and local news, the recipient's professorship, a curacy for Steuart Williams, an offer of ℗Đ73,000 for a grove of oaks at Margam), 'Fanny' [Williams] (personal, the recipient's professorship, enclosing verses), W. R. Steuart Williams, Llandovery, etc. (the writer's ordination, the opening of Llandovery Grammar School, personal), John Wilson, Roy[al] Agric[ultural] Coll[ege], Cirencester (the progress of the College, the recipient's accident), and R. O. Wilson, London (an enquiry concerning Mr. Davys Harries, Neuaddfawr, Carmarthen). Some of the letters are addressed to the Geological Survey at Ludlow, at Bishops Castle, at Pen-y-bont (Radnorshire), and at Llanberis, and to the Museum of Economic Geology, Charing Cross, London.

Sixty-four holograph letters and three formal notes from [Sir] Jos[eph] Banks, from Soho Square [London], from Spring Grove [Isleworth, co. Middlesex], from Revesby Abbey [Lincolnshire], etc., to John Lloyd at Hafodunos, at Soughton, Northop, at Wygfair, St. Asaph, etc., 1778-1814 and undated (personal and family news and news of acquaintances, and more specifically an invitation to a Royal Society club dinner (1778); Lord Mahon's book on electricity [Principles of Electricity, 1779] and his promise of another in which he would refute Mr. [Benjamin] Wilson's deductions, news of Lord Mulgrave and [Sir Charles] Blagden, and a request for a specimen of saxifraga umbrosa from Ireland (1780); a paper on new double stars to be read to the R[oyal] S[ociety] by [William] Herschel, the death of [? Dr. Solander] and a request for a specimen of Crataegus Aria from the cliffs near the top of Pen Man Mawr [co. Caernarvon] (1782); a balloon flight across the English Channel by [John] Jefferies and [François] Blanchard [this letter is dated January 1784 but this is probably a mistake for 1785, the flight having been made in January of that year], the resignation of the clerkship of the R[oyal] S[ociety] by Robertson and a contest for the post between Messrs. Coppard and Gilpin (1785); [William] Herschel's visit to Germany to take a telescope of his own making as a present to the University of Gottingen, Herschel's progress with his forty feet [telescope], the discovery of a new comet by Caroline, Herschel's sister, a 'bill intended by the manufacturers to restrain the growers of wool' and a meeting to be held in Denbighshire to consider the bill, the teaching of classics in England as compared with the continent (1786); the receipt of a box of plants from the Snowdon area, Danish and Roman antiquities found in the bed of the river Witham [co. Lincoln], the danger of wheat which was imported from America being infected by insects unknown in this country (1788); comments on Shetland sheep and a request for a specimen (1791); the political situation with comments on democrats, constitutionalists, the Whig club, etc., (1793); a visit from David Pennant, the ill treatment of recipient by a riotous mob at Denbigh, the presence of 'dangerous mobs in many counties' caused by 'the first Raising of the Militia', the price of corn, damage estimated at £ 750,000 by floods in Cambridgeshire, Lloyd's service to the country as a magistrate and the value of this office to the constitution, sheep rearing, the discovering of gold in Ireland (1795); the result of the [parliamentary] election in [co. Caernarvon] with mention of the contestants Sir Robert [Williams] and Lord Penrhyn, acknowledgement of receipt of copies of 'Shon Gwialen', the ill effects of apple insect, good wishes to recipient should he 'undertake the arduous task of becoming Knight of your shire', criticism of Thomas and David Pennant (1796); a request by Lloyd for a copy of the map which accompanied Dr. [Christopher] Packe's Ancographia sive Convallium Descriptio (1798); [Frederick] Hornemann's journey to Africa [on behalf of the African Association], the effects of prolonged drought, comments on Adam Smith's theory of 'perfect freedom in trade' (1800); the abundant crops and the price of grain (1801); the result of the [parliamentary] election in co. Kent, the West India docks in the Isle of Dogs and the Wapping Docks, the health of the members of the Royal Family whom the writer had seen at Weymouth (1802); the possibility of an invasion of England by Buonaparte (1803, 1805); Lloyd's wish to become a trustee of the [?British] Museum (1804); the death of [Alexander] Aubert at Lloyd's home, the draining and selling of land by the writer (1805); the writer's anger on seeing the spires of Lincoln minster pulled down, a request for Lloyd's help in procuring answers to a questionnaire concerning alleged damage to cathedral fabrics, comments on 'the Political Hurricane' which had taken the King out of the hands of a Whig administration, the political changes in England, wire worms, the anniversary of the Club, astronomical data (1807); the cultivation of cranberries, news of crops (1808); receipt of a Brazil coin and of tokens for his sister's [Sarah Sophia Banks] collection, Sir H. Englefield's circular letter and canvass of the Society of Antiquaries (1811)). 'Shon Gwialan' probably refers to the pamphlet entitled 'A Letter to the Right Reverend Dr. Warren on his conduct as Bishop of Bangor', published in 1796, in which the writer, 'Shon Gwialan', attacks the bishop of Bangor for alleged nepotism, etc. The identity of the writer has not been discovered.

Notes on geography and astronomy.

Outlines of sermons, notes on astronomy, miscellaneous extracts, etc. by Phillips.

A volume originally intended as an account book of receipts by T[homas] Richards in respect of Berriew School, 1813-26, and the curacy of Montgomery, 1815-20, and subsequently used by Mary Richards to record transcripts of poetry ('englynion', hymns, free metre stanzas, etc.) by Thomas Llwyd Iangcaf (Pen Maen), Thos Roberts ('Philo Cadfan'), Evan Evans ('[Ieuan] Glangeirionydd'), William Jones ('Gwilym Cawrdaf'), Rowland Parry ('Ieuan Carndochan'), Henri Griffyth ('Hari Goch o Wynedd') (Llanrwst), W. Williams ('Gwilym Bryn Mair'), [John Jones] ('Ioan Tegid'), Aneurin Owen, W[alter] Davies ('Gwallter Mechain'), [David Richards] ('Dafydd Ionawr'), Dafydd Richards ('Dewi Silin'), Robert Davies (Nantglyn), Robert Parry (Eglwysfach), Evan Jones ('y Saer', Darowen), [William Williams] 'Gwilim ab Iorwerth' (Darowen), John Blackwell ['Alun'], Evan Brees, D. Thomas ['Dafydd Ddu Eryri'], David Charles [1803-80], Caerfyrddin, etc.; letters from Philip Vaughan, secretary, Cambrian Society in Gwent, from Brecon to Thomas Richards, Llangynyw, 1821 (an acknowledgement of the receipt of a 'Book of the proceedings in Powys', the election of the recipient to honorary membership of the Society), and to David Richards, Llansilin, secretary, Powis Society, 1821 (the election of the recipient to honorary membership), S. Lovat, Llangedwyn to David Richards, 1820 (a payment, a reference to Pool Eisteddfod), J. Ingram, Douglas to the Reverend Robert Nanney, Dolgelley, 1787 (the writer's financial affairs), W. Williams ('Gwilim ab Iorwerth'), Glan Clywedog Mill, Llan Idloes to Mair [Richards], 1851 (Welsh strict metres, Welsh services at Llanidloes Church, Eisteddfod Madog), John Blackwell, Oxford to [Mary] Richards, 1824 (an enclosed stanza by 'Tegid'), Ann [ ], Glan Machles to her father Evan Robert, Darowen, 1821 (personal), Ch. Meyer, Llanrhaiadr [ym Mochnant] to Thomas Richards, Llangynyw, 1850 (the writer's stay with ['Gwallter Mechain'] and his proposed visit to Llangynyw), W[alter] Davies ['Gwallter Mechain'] (in the third person) to T[homas] Richard[s], Berriew, 1823 (a request for books for E. Ridge, the schoolmaster of Dolgynfelyn), Rowla[n]d Parry ['Ieuan] Carindochan'), 'Ysgol Rhydymain yn agos ir Blaenau' to [Thomas] Richards, Darooen [sic], 1819 (a shortage of books at the writer's school), [David Richards] ('Dewi Silin') to the Reverend [ ], undated (the writer's inability to assist the recipient next Sunday) (incomplete), Dafydd Hywel [David Howells] ('Cyfreithiwr o Fachynlleth'), Llanfair Caer Einion to [Mary] Richards, 1872 (Welsh singers at the Crystal Palace), etc.; depositions of witnesses touching the boundaries of, and rights to, a common called Ty Issa ir Hengwm Cowarch [Llanymawddwy, Merioneth] 1749; adjudications by R. Richards, Caerwys and another on poems on the shipwreck of St Paul; a deposition [after 1780] of Thomas Edward of Llan y Mawddwy, Merioneth, administrator of the estate of Griffith Jones of the parish of Sai[n]t Leonard, Foster Lane, London touching a debt due from Henry Parry of Cleneney, Caernarvonshire, dealer and chapman; 'Henwau y Pedwar ar hugain Marchog oedd yn llys y Brenin Arthur', 'Yr wyth fyd neu uchelderau y mae r Astronomyddion yn crybwyll am danynt', couplets extracted from 'cywyddau' of Edmwnd Prys, Huw Arwystl, Ieuan Tew and others, and an 'englyn' by Ioan Prichard (1670) from a manuscript written by John Morrus, 1784; the memorial inscription of William Foulkes, Ll.D., Mae[s] y Glwyden (ob: 1727/8); etc. Much of the poetry of 'Ieuan Glan Geirionydd', 'Gwilym Cawrdaf' and 'Ieuan Carndochan' was composed at Darowen Vicarage around the period 1822-3 and these transcripts are profusely annotated by the scribe. The volume was largely compiled during the years 1855-60 but there are some later entries dated to 1871. Among the insets and the items mounted on the inside covers is a pen-and-ink portrait of Thomas Richard[s], Darowen.

'A Philosophical and Physical Sketch of Nature in her different Kingdoms. Including Astrononmical remarks & & in The Ancient British Language Dedicated to the Right Hon. the Earl of Uxbridge', with a printed prospectus, dated 1833, in which the author of the work is described as 'William Owen (alias Gwilym Alaw) gynt o'r Chwaen wen, Môn'.