Argues that Saltair na Rann is the old name for the second vellum part of MS Rawlinson B 502, against P. Ó Riain’s identification of this MS with the lost Book of Glendalough (in Éigse 18 (1981), pp. 161-76). Also on the textual history of the Pedigrees of the Saints, and the poems Druim Ceta Céte na Náem, Colum Cille co Dia domerail, Tánic sam slán sóer, Fuitt co bráth and Cia lín don rígraid ráin ruaid.