being written backwards or syllables transposed, but this was certainly not the original invention. Some of the latest Ogam pillars are gravestones of people who died so late as the year 600, but what proportion of them, if any, date from before the Christian era it is as yet impossible to tell. Certain it is that the grammatical forms of the language inscribed upon most of them are vastly older than those of the very oldest manuscripts,[7] and agree with those of the old Gaulish linguistic monuments. Cormac's Glossary--a work of the ninth or tenth century--the ancient sagas, and many allusions in the older literature, would seem to show that Ogam writing was used by the pagan Irish. Cormac, explaining the word _fé_ says that "it was a wooden rod used by the Gael for measuring corpses and graves, and that this rod used always to be kept in the burial-places of the heathen, and it was a horror to every one even to take it in his hand, and whatever was abominable to them they (the pagans) used to inscribe on it in Ogam."[8] The sagas also are full of allusions to Ogam writing. In the "Táin Bo Chuailgne," which probably assumed substantially its present shape in the seventh century, we are told how when Cuchulain, after assuming arms, drove into Leinster with his charioteer and came to the dún or fort of the three sons of Nechtan, he found on the lawn before the court a stone pillar, around which was written in Ogam that every hero who passed thereby was bound to issue a challenge. This was clearly no cryptic writing but the ordinary script, meant to be read by every one who passed.[9] Cuchulain in the same saga frequently cuts Ogam on wands, which he leaves in the way of Mève's army. These are always brought to his friend Fergus to read. Perhaps the next oldest allusion to Ogam writing is in the thoroughly pagan "Voyage of Bran," which both Zimmer and Kuno Meyer consider to have been committed to writing in the seventh century. We are there told that Bran wrote the fifty or sixty quatrains of the poem in Ogam. Again, in Cormac's Glossary[10] we find a story of how Lomna Finn mac Cool's fool (drúth) made an Ogam and put it in Finn's way to tell him how his wife had been unfaithful to him. A more curious case is the story in the Book of Leinster of Corc's flying to the Court of King Feradach in Scotland. Not knowing how he might be received he hid in a wood near by. The King's poet, however, meets him and recognises him, having seen him before that in Ireland. The poet notices an Ogam on the prince's shield, and asks him, "Who was it that befriended you with that Ogam, for it was not good luck which he designed for you?" "Why," asked the prince, "what does it contain?" "What it contains," said the poet, "is this--that if by day you arrive at the Court of Feradach the king, your head shall be struck off before night; if it be at night you arrive your head shall be struck off before morning."[11]