Auraicept na n-Eces: The Scholars' Primer

Auraicept na n-Eces is a medieval Irish grammatical primary text, and this 1917 edition by George Calder gives both the original text and its translation, including the Briatharogaim word-oghams and the tract's elaborate alternative ogham schemes, letting a reader check a specific claim against the source itself. As a primary text in edited translation it is authoritative for what this medieval tract actually says about the ogham letters, not for whether the tract's own claims about the letters' origin are historically accurate, since the Auraicept itself is a much later scholastic composition about an older script. Use it to establish what this specific medieval source records about ogham; a claim about the script's actual earlier historical use needs an epigraphic source instead.