Forty-six manuscript and typescript letters, [c. 1890]-[c. 1934], from Berta Ruck, mostly to her father, Col Arthur Ashley Ruck, [1920s]-[c. 1934], containing mainly personal and family news.
Also included are two letters to her grandmother Mary Anne Ruck, [c. 1890] (ff. 1-4), and a carbon copy letter to her sister-in-law, Georgina Ruck, 15 July 1932 (ff. 86-91). Most of the letters were written either from home or while on holiday in Austria, France, Germany and Sweden. There are references to Oliver Onions (ff. 6-100 passim), Geoffrey Moss (f. 6), Sir Ray Lankester (ff. 9 verso, 10 verso-11, 12, 31, 32, 66), Ménie Muriel FitzGerald (ff. 13-17, 18, 29, 46-47, 56, 59), Alec Waugh (ff. 26, 35-36) and Vita Sackville West (f. 46); she also describes her car accident on 14 July 1932 (ff. 88-91). There are ink drawings by Ruck on f. 2 recto-verso.

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.