A sixteenth-century manuscript containing a medical treatise in Welsh, recipes, charms, and an astrological fragment; a treatise on uroscopy in English; poetry, including a cywydd by Ieuan Brydydd Hir (hynaf); 'Llythyr Aresdotlys [...] o gadwedigaeth korff dyn ac gavas ynte yn hemyl yr havl [...]' (pp. 228-237); and a prologue to a work which is called 'Compod' ('o herwydd I vod ef yn comprehendio [...] kompod Manuwel') (pp. 197-200).
The manuscript is written in several hands of the early to late sixteenth century, possibly including that of its original owner Bened ap Rhys (Bened Feddyg) of Llanelidan, Dyffryn Clwyd, as well as Tudur ab Elise (see p. 150).

Records and papers, 1647-1872, relating to the manors of Llanelidan, Llanfair Dyffryn Clwyd, Rhos, Llanhychan, Rhiwbebyll, Llech, Llan and Meifod, Denbighshire, 1647-1872; miscellaneous documents including papers relating to Llanelidan enclosures, 1797-1832; miscellaneous papers relating to the Bishop of Bangor's estate in Llanelidan, 1828-1836; and posters issued by the Ruthin Association for the Prosecution of Felons, 1846-1851.