Identifies main hand of NLS MS Adv. 72.1.1 (part 2) as Adhamh Ó Cuirnín and dates it as a later specimen of the scribe’s work to ca. 1425. Contains two plates, from MS RIA 23 P 2 (Book of Lecan) and NLS 72.1.1. Cf. T. Ó Concheanainn, in Éigse 15/3 (1974), pp. 235–251, Appendix 2.