A composite volume (pp. 1-332; one hundred and sixty-two pages blank) containing miscellaneous notes, lists, extracts, etc., in the hand of Edward Williams ('Iolo Morganwg'). The contents include pp. 13-15, extracts from the manuscript copies of 'Liber Landavensis' in the 'Library of Mr. Davies of Llannerch' [now NLW MS 17110E] and 'in Coll. Jesu, Oxon.' [Jesus College MS 20], including transcripts of the Welsh version of the privilegium of St. Teilo; 21-5, 29-36, extracts from the English version of [William] Camden['s Britannia] relating to the language of the Gauls, with additional notes by Edward Williams himself (see Edmund Gibson (ed.): Britannia . . ., 2nd ed. (London, 1722), Vol. I, cols. xxii-xxix); 69-76, comments on William Owen [Pughe]'s letter on the Welsh language and the Gwentian dialect published in [William] Coxe: [An Historical Tour in] Monmouthshire . . . [(London, 1801), part II, pp. 405-10]; 87-98, historical notes on Welsh literature; 99, 101-03, brief miscellaneous notes on the Silurian, North Wales, Venedotian, and modern literary dialects of Wales, the use of verse amongst the early Greeks, the Ancient Britons, and the early Scandinavians, the mechanical and other skills of the Ancient Britons, and 'Ancient manners still retained in Wales', and brief extracts from one of the published letters of Lady Mary Wortley Montagu from Adrianople, 1718, relating to certain social customs in Turkey; 127, an extract 'Ex Alit yr Odyn MS.' relating to 'Griffine, the sonne of Conane', and an assembly of musicians convened at Caerwissc; 129- 31, extracts from Giraldus Cambrensis: Descriptio Kambriae, book 1, chapters 3, 12, 13, referring to the genealogies of the princes of Wales, the musical instruments of the Welsh, their bards, etc.; 138, 143-6, 148-9, 151, 153, 178-203, 231-46, 249-69, lists of Welsh words of a specific nature grouped together under descriptive headings ('Enwau Duw', 'Enwau Duw - Barddas', 'Walicized Roman Names', 'Geiriau sathredig yng Ngwent'), lists of Welsh words of a more general nature and of Welsh phrases, mainly poetic or bardic, sometimes with English definitions and/or illustrative excerpts from the works of Welsh poets, miscellaneous etymological and grammatical notes on the Welsh language, etc.; 159-72, lists of Welsh 'wisdom sayings' including lists with the superscriptions 'Llyma eiriae Gwynda Hen', 'Llyma eiriae Selyf dhoeth', 'Llyma gynghorau Catto Ddoeth ag Ystudfach Fardd a'r Bardd Glas o'r Gadair . . .', and 'Llyma Gynghorion y Doethion'; 207-08, notes headed 'Peculiarities of Dr. R[ichar]d Davies New Testament'; 247-9, a list of 'Welsh Agricultural Terms in Glamorgan'; 283- 6, 292-3, notes on Welsh bardic rites and ceremonies; 289-91, notes on Welsh poetic metres headed 'Llyma fal y mae Lewys Morganwg yn son am y mesurau Cerdd Dafawd a'u dosparth yn y Llyfr Cerddwriaeth a wnaeth efe Yr Arglwydd Wiliam Herbert, Iarll Rhaglan'; 311-13, notes on the metrical foot in Welsh verse headed 'Llyma Gorfannau cerdd dafawd'; 314-15, further notes on the same topic headed 'Llyma fal y mae am y Corfannau yn Llyfr Owain ap Rhydderch o Dresigyn'; and 316-21, comments on some of the Welsh strict metres, notes on the type of poem called a 'carol neu ddyrif, a elwid cerdd deuluaidd gan yr hen athrawon', and notes on an assembly of bards convened by King Arthur at Caerleon ('Llyma son am Gadair Arthur o Lyfr Rhys Brydydd o Dir Iarll').