The Celtic Literature Collective

Lebar na nUidre
The Book of the Dun Cow

The entire book in Irish can be found here

The Six Ages of the World
Historia Brittonum (only a fragment in LU)
The Eulogy for Columbcille
The Tidings of Tuan mac Carill
The Kingdom of Heaven’s Two Sorrows
The Intoxication of the Ulstermen
The Raid for Dartaid's Cattle
The Voyage of Maildun
The Vision of Adamnan
Tidings of Doomsday
Tidings of the Resurrection
The Death of Nath Í
The Death of Eochaid mac Maírid
The Cause of the Battle of Cnucha
Slicht Libair Budi Slani
The History of Burial Places
The Birth of Aedh Slaine
The Expulsion of the Dessi and the Death of Cormac
Táin Bó Cúailnge
The Destruction of Da Derga's Hostel
The Feast of Bricriu
The Phantom Chariot of Cu Chulainn
The Genealogy of Cuchulainn
The Battle of Carn Chonaill
The Conversion of King Lóegari
The Prophecy of Art mac Conn
The Adventure of Connla son of Conn
The Four Quarters of the World
The Voyage of Bran
Wooing of Emer
The Birth of Cuchulain
The Wooing of Etain
The Tales of Mongan
The Place of the Ulster Champions' Heads