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Proceedings of the Royal Irish Academy. 



6 inches long, 3 feet 6 inches broad, and 5 feet 6 inches high, also 

 roofed with six slabs. From this a third passage leads to the fourth 

 and last chamber ; the entrance is 1 foot 7 inches wide, and 1 foot 

 8 inches at exit, is 3 feet long, and 1 foot 8 inches high. The 

 chamber is 8 feet 6 inches long, and 4 feet 3 inches wide, and 5 feet 

 6 inches high, with sloping walls, slightly rounded off at the ends, 

 and thin projecting cornice stones, on which rest six roof slabs. 



LisMAE>^At7N (0. S. 57). — About one mile north of Beaufort Bridge, 

 oS the road to Faha, to the right, is Lismarnaun, known locally as the 

 rath of Bossnacarthan, on Clifford's farm. It stands on a good eleva- 

 tion, and commands a magnificent view of the surrounding country. 

 It has triple ramparts and double trench, and is a particularly fine 

 example of an earthen fort. The inner rampart is partly defaced, 

 particularly on the east side. The enclosed area measures 108 feet in 

 diameter from north to south, and the height from the bottom of the 

 trench to the top of the rampart is 1 5 feet. From the centre of the 

 inner to the centre of the second rampart is 28 feet, and that between 

 the second and third rampart is 35 feet. The third rampart is greatly 

 defaced on the north and south sides. We heard no reports of a 

 chamber, nor were there any obvious signs of one ; but it is very 

 likely that one so important, from its character and position, also con- 

 tains passages and chambers similar to others so situated. 



LisavanRath axd Chambees (0. S. 57). — About one mile north of 

 Faha School, and a few fields to the north-west of where the road 

 fords the Gweestin Biver, is Lisavan rath, on the farm of Mrs. Leary. 

 It stands at the end of a high ridge that rises rapidly above the little 

 river valley. The view, like that from many of the raths, is a very 

 extensive one, and the spot was chosen for obvious reasons. The 

 rath is oval in shape, and measures 147 feet from north to south, and 

 100 feet from east to west. The inner rampart is nearly defaced, and 

 the outer is much cut into in places. The depth to the bottom of the 

 trench from within the rath is now about 6 feet, and the width is 

 15 feet. The thickness of the outer rampart is 12 feet in places, and 

 height varies from a few feet to 12 feet. 



At a distance of 35 feet from the west end is an entrance to a 

 souterram formed by a fallen slab (Plate II.). The roof is 1 1 feet long, 

 and is formed by four large slabs. The width of the narrow entrance at 

 east end is 13 inches, and the floor slopes down rapidly to a height of 

 4 feet 8 inches. It rises again to a break in the west end, where 

 there are signs of a further extension of the chamber, but it is choked 

 by fallen rubbish. The walls are built of loose, flat stones, and the 



