Five poems only are ascribed to him, but these are found in MSS.

of considerable antiquity.
The poems of Oisin were selected by the Scotch writer for his grand experiment.

He gave a highly poetical translation of what purported to be some ancient and genuine composition, but, unfortunately for his veracity, he could not produce the original.

Some of the real compositions of the Fenian hero are, however, still extant in the Book of Leinster, as well as other valuable Fenian poems.

There are also some Fenian tales in prose, of which the most remarkable is that of the Pursuit of Diarmaid and Grainne--a legend which has left its impress in every portion of the island to the present day.