Abstract: A volume (pp. 1-254, mostly blank) of notes in the hand of Edward Williams ('Iolo Morgannwg') bearing the inscription 'History of the British Bards. Common Place Book No 111 by Edward Williams...' on the 'title page'. Pp. 2-35 (each page headed 'Alphabet(Bards)') comprise brief notes on a mythological and peudo-historical account of the origin of letters and the British bardic alphabet, comments on the paucity of evidence, other than mythological accounts, relating to the origin of alphabets, examples of alphabets, notes on the use of the Welsh bardic alphabet for writing by inscribing on wooden surfaces, and a description of a 'peithynen', i.e. a series of four-sided 'billets' of wood; pp. 36-43 (each page headed 'Poetry preceded Prose) comprise extracts from the works of various English authors on the theme that poetry preceded prose in the literatures of various nations, and notes on the literature of North and South Wales, the superiority of North Wales in the field of poetry and of South Wales in the production of prose, and the belief that the 'Silurian dialect' was the written literary dialect of North Wales down to the mid-sixteenth century; p.44 (headed 'Letters, when first known in Britain') comprises a brief comment on the antiquity of the Welsh language and on the knowledge of letters, etc. amongst the Britons; pp. 45-7 (blank, but each page headed 'Poetry preceded Prose') comprise extracts from the works of various authors on the theme denoted in the page headings; pp. 71-7 are blank, but each page bearing the same heading as pp. 66-70; and pp. 78-83 (each page headed 'Letters, when first known in Britain') comprise extracts mainly from Caesar: De Bello Gallico and relating to the Druids. The remaining pages are blank.