ARCHÆOLOGICAL excavations in the vicinity of Lough Gur, Co. Limerick, in the season 1939, it is claimed in a report in The Times of January 2, have obtained results of outstanding significance for Irish archæology. This area has now been under investigation for four consecutive seasons, thanks to the Government's scheme for the relief of unemployment; and several sites have been examined, including three stone circles, a megalithic tomb, and a series of dwelling sites. The excavations have been carried out under the direction of Prof. Seán P. O'Riordain of the University of Cork. The principal site excavated in 1939 was a large and exceedingly well-preserved stone circle on the western side of the lake, near the Bruff-Limerick road. Not only is this the best known prehistoric monument of the Lough Gur, but it is also said to be the finest stone circle in Ireland. It is built of large stones backed up by a huge bank of earth, and encloses a level, open internal space 155 ft. in diameter.