80 H. C. Lawlor on 



From this it is easy to identify the Lake Dwelling as the 

 Crannog of Bryan Caroghe O'Neill, then a place of military 

 importance, sufficiently large to accommodate a garrison of foot- 

 men. 



The same Bryan O'Neill had also a lake dwelling at Innis- 

 rush, Co. Derry, and a residence on the Co. Antrim side of the 

 Bann. 



The accompanjdng illustration will serve to show a section 

 of the Island. How far the super-stratum of stones extends 

 laterally cannot now he seen under the water, and the extent 

 and depth of the timber foundation must also be purely a matter 

 of conjecture. 



Since this was written Colonel Bruce, of Ballyscullion, informs 

 me that in 1858 the Bann Drainage Scheme lowered the level of 

 Lough Beg an average of 4 feet. From this information it 

 appears that prior to 1858 this Island was entirely submerged, 

 even in summer low level. The Ordnance Survey Map to which 

 I have referred was made in 1856-7, which accounts for the 

 Island not being shown therein. 



In my paper of last year I referred to three Souterrains in 

 the ancient territory of Moylinny, which are peculiar as being 

 entirely excavated out of solid rock, namely, those at Donegore, 

 and Ballymartin, and that under the trench surrounding the Fort 

 known as Rathmore of Moylinny. I have since found a record 

 of another rock-cut Souterrain in the same neighbourhood. 

 Father O'Laverty in his " Diocese of Down and Connor "* quotes 

 from the Ordnance Survey Letters a reference to it as follows : — 

 " There is in the townland of Templepatrick, and a little south of 

 the village, an artificial cave excavated in a soft decomposed rock 

 of basalt. Its mouth, which is 4j feet wide and 2 feet high, is 

 in the face of the rock. The cave extends 27 feet, gradually 

 increasing to 7 feet in width and 4 feet 9 inches in height, and 

 at its south western extremity it has another chamber. The side 

 walls and roof of the cave are rudely cut." 

 *Vol. III., page 238. 



