Notes and lectures by Ceinwen H. Thomas on the folk-dances of the Nantgarw district, based on the recollections of her mother, Catherine Margretta Thomas (1880-1972). They comprise notes, c. 1953, mostly in Welsh, on performing the dances (ff. 1-27; see Dawns (1973-1974), 22-53); and lectures, 1957 and 1974, on life in Nantgarw in the early 1880s (ff. 28-43; see the Welsh Folk Dance Society News-Letter, 5 (1957), 7-11, and Roger Lee Brown, Taff's Well and Nantgarw in the 80s and beyond (Tongwynlais, 1982), pp. 2-17) and on how the dances came to be recorded (ff. 45-62; see Dawns (1973-1974), 10-22).