390 The Pre-historic Antiquities [July? 



the western side of the large imperfect circle, having been removed 

 from thence when the road was being made. Tliere is also in the 

 same field a large cup-shaped depression about 210 paces in diameter, 

 but whether this is a natural or an artificial production there is not 

 sufficient evidence at jjresent to determine. 



The eastern side of Lough Gur is margined by a very irregular 

 outhne, and the surface here is much bolder than on the western 

 shore. Before the surface of the waters of the lake was reduced to 

 its present level, a large island, about half the size of the lake, 

 occupied the eastern side. This was, however, separated from the 

 mainland only by shallow water in a narrow channel and boggy 

 ground ; it now forms a peninsula, and is known as Knockadoon Hill, 

 the summit of which rises about 200 feet above the level of the lake, 

 and the sides of which exhibit several bold rocky escarpments. 



On the west side of Knockadoon, about 34 perches from the 

 border of the lake, another stone and earth circle is seen. This, 

 which is about 90 feet in diameter, is made up of a double ring of 

 upright flaggy limestone blocks which liave been obtained in the 

 immediate neighbourhood, and which, when contrasted with the 

 blocks forming the chcles on the western side of the lake, are of 

 small size. The interval between the outer and the inner row 

 of flagstones is about 4 feet. The flags, as in the case of the large 

 stone and earth circle at Grange Cottage, are placed very near each 

 other, and the interval between the two rows is partially filled in 

 with earth. Inside this circle are several detached blocks of rock 

 of comparatively small proportions. 



Another double stone circle filled in with earth occurs on the 

 south side of Knockadoon, about 15 perches from the shore of 

 the lake. Tliis is somewhat smaller in size than the one just 

 alluded to. It also has several detached blocks in the area enclosed 

 by it. One of these, near the N.E. side, is a flaggy mass placed on 

 its end in the ground, and being about 3 feet high, forms a small 

 monolith. The anti(|uity of this monolith is well indicated by the 

 weathered state of its surface, which is deeply eroded by atmospheric 

 action. Mr. Day, ^.S.A., IMr. Fitzgerald, and myself opened the 

 ground immediately west of this monolith, and at the depth of 

 little more than a foot from the surface discovered human bones. 

 These consisted of fragments of ribs, fragments of bones of the 

 arms, a nearly perfect lower jaw, a ])ortion of the upper jaw, the 

 frontal and parietal bones of the skull very nearly entire, with the 

 temporal and occipital bones in a less perfect state. These bones 

 had belonged all to one individual, a young person of from six to 

 eight years of age. The bones of the head exhibited features of an 

 interesting nature, and the lower jaw had also peculiar characters. 



As regards the latter, these consist of its great thickness, espe- 

 cially where the molars are inserted ; the form of the malar angle, 



