A volume, [1813x1815] (watermark 1813), containing translations into English verse, probably by Sir John Bernard Bosanquet (see pencil note on f. 2), of Welsh poetry by Dafydd ap Gwilym (ff. 4-5), Aneirin (ff. 6-7 verso), Taliesin (ff. 8-10), Gwalchmai ap Meilyr (ff. 11-13), Cynddelw Brydydd Mawr (f. 14 recto-verso) and Iolo Goch (ff. 16-17 verso).
Also included are notes on the poets and their works (ff. 20-30 verso) and an English translation of triads attributed to Catwg Ddoeth (ff. 18-19 verso). The volume is illustrated with six ink and wash sketches (ff. 3, 4, 5, 11, 17 verso, 26), including one of Cilgerran Castle, Pembrokeshire (f. 4). Frances Elizabeth Lewis (d. 1846), to whom the volume was given (see f. 2), was the sister of Mary Anne (d. 1819), wife of J. B. Bosanquet.