324 Proceedings of the itoyal Irish Academy. 



At first sight this looked a hopeless complication of debris, promising 

 neither instructive remains nor even a satisfactory plan. But when \^e 

 proceeded to clear out the floor, and then re-erected a couple of the side 

 stones of the passage which had fallen forward, we had the satisfaction of 

 recoveriag completely the original design, except at the entrance, where 

 stones have apparently been removed (Plate XII, fig. 3;. A bed of peat, 

 several feet thick, covered some parts of the existing entrance. This had 

 e^'idently accumulated after the structure had fallen into the condition of 

 ruin in which we found it. 



There may have here been a porch-like structure of large slabs or stones, 

 resembling that at the other end. The stones that seem to suggest this are 

 represented on the enlarged plan on Plate XVII. The chamber proper (which 

 has lost all its cover-slabs) is a narrow passage, just under 12 feet long, and 

 of irregular width, averaging about 3 feet. It is bounded by slabs of lime- 

 stone set on edge, four on one side, sis (one of small size) on the other. The 

 floor is divided by sill-stones, 6 to 8 ruches high, into four compartments of 

 unequal size, all of which contained the debris of interments. The side-slabs 

 are between 4 and 5 feet in height. 



On each side, at the second floor-compartment, is a small cist, formed, 

 like the main passage, of slabs on end— though smaller than the slabs in the 

 passage— and each covered with a lai^e more or less rectangular slab, which 

 still remains intact. These cists also contained bone debris, lying in each 

 case en a large floor-slab. They are pentagonal in shape, the dimensions 

 every way being about 3 feet. 



The plan of a very similar structure, at Highwood, to the north of Lough 

 Arrow, will be found in Wood-Martin's " Eude Stone Monimients of Ireland," 

 page 181. 



P.— This structure was in some respects the most important of the entire 

 series. As the photograph (Plate XII, fig. 4) shows, it is of large size, and 

 beautifully regular. It is indicated only by an indefinite symbol, not as an 

 ancient monument, on the Ordnance map, though it is perhaps the most con- 

 spicuous of the whole series. It is 87 feet in diameter, and about 25 feet in 

 height. The structure is built of stones rather smaller than are the other earns. 

 The top is slightly hollowed, possibly as a result of the collapse of the 

 chamber. A plan and section of the cam will be seen in Plate XIX. 



The entrance, as in the others, is toward the north. It is of a much more 

 monumental character than the small creep-holes which give admission to the 

 other cams, being 4 feet 7 inches high, and lined by massive jamb-stones 

 supporting hntels, one of which is 7 feet ia length. Plate XIII, fig. 1, shows 

 this doorway. 



The chamber into which this doorway gives admittance is quite different 



