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300 affording a most suitable refuge for wild beasts, and in this were formerly found monks serving the Lord."

It is quite true that there is a submerged forest in Mount's Bay, and that the marshy snipe -ground near Marazion Road Station covers large timber, a portion of this great forest, but the submergence cannot have taken place in historic times. That there was, however, an encroachment of the sea in the middle of the sixth century, we learn from the Life of S. Paul, Bishop of Leon. He came to the bay to visit his sister, Wulvella, of Gulval, when she complained to him that she was losing much of her best land by the advance of the sea ; and he, who had been brought up in the Wentloog levels, and taught by his master, S. Iltyd, how to keep up the dykes against the tides in the Severn, banked out the sea for her.

This was precisely the time when the district of Gwaelod was submerged in the Bay of Cardigan. The king of the district was Gwyddno Longshanks. It was the duty of the warden of the dykes to ride along the embankments, that had probably been thrown up by the Roman legionaries, and see that they were in order. Seithenyn was the Dykegrave at the time.

One night Gwyddno and his court were keeping high revel, and the dyke-master was very drunk. There was a concurrence of a spring-tide and a strong westerly wind, and the waves overwhelmed the banks. The king escaped with difficulty before the inrolling stormy sea. A poem by