The collection of Irish Triads, which is here edited and translated for the first time, has come down to us in the following nine manuscripts, dating from the fourteenth to the nineteenth century:—
L, i.e. the Yellow Book of Lecan, a vellum of the end of the fourteenth century, pp. 414b—418a, a complete copy.
B, i.e. the Book of Ballymote, a vellum of the end of the fourteenth century, pp. 65b-66b (ends imperfectly).