These are a group of lakes in which the river Aeron, in Cardiganshire, rises. There is an old story that wild cattle used to come out of Eiddwen, and rush back when disturbed. Mr. David Rees, Glynwern, Llanilar, informed me that according to an old prophecy attributed to Merlin, when Llyn Eiddwen dries up the town of Carmarthen will sink! There is also a story about Llyn Farch that, once upon a time, a most wonderful animal came out of its waters, and was shot by a farmer. SAVADDAN LAKE (BRECONSHIRE). This celebrated lake which is known by several names, such as Llangorse Lake, Lake of Brycheiniog, etc., occupies a spot where, according to ancient tradition, once stood a large city, which was swallowed up by an earthquake. Camden once thought that the supposed city was the ancient Loventium of the Romans; but Loventium stood, in all probability, in the parish of Llanddewi Brefi, Cardiganshire. This lake was once celebrated for its miracles, and Giraldus Cambrensis seven hundred years ago, says:--"In the reign of King Henry I., Gruffydh, son of Rhys ap Theodor, held under the King, one comot, namely, the fourth part of the cantred of Caoc, in the Cantref Mawr, which, in title and dignity, was esteemed by the Welsh, equal to the southern part of Wales, called Deheubarth, that is, the right-hand side of Wales. When Gruffydh, on his return from the King's Court, passed near this lake, which at that cold season of the year was covered with waterfowl of various sorts, being accompanied by Milo, Earl of Hereford, and Lord of Brecheinioc, and Payn Fitz-John, Lord of Ewyas, who were at that time secretaries and privy counsellors of the King; Earl Milo, wishing to draw forth from Gruffydh some discourse concerning his innate nobility, rather jocularly than seriously thus addressed him: 'It is an ancient saying in Wales, that if the natural prince of the country, coming to this lake, shall order the birds to sing, they will immediately obey him.' To which Gruffydh, richer in mind than in gold (for though his inheritance was diminished, his ambition and dignity still remained), answered, 'Do you therefore, who now hold the dominion of this land, first give the command'; but he and Payn having in vain commanded, and Gruffydh, perceiving that it was necessary for him to do so in his turn, dismounted from his horse, and falling on his knees towards the East, as if he had been about to engage in battle, prostrate on the ground, with his eyes and hands uplifted to Heaven, poured forth devout prayers to the Lord: at length, rising up, and signing his face and forehead with the figure of the cross, he thus openly spake: 'Almighty God, and Lord Jesus Christ, who knowest all things, declare here this day Thy power. If Thou hast caused me to descend lineally from the natural princes of Wales, I command these birds in Thy name to declare it;' and immediately the birds, beating the water with their wings, began to cry aloud, and proclaim him.