285 



No. 25. This is the highest position in the county in which chalk 

 occurs, the quarry being 1254 feet above sea level. 



27. Ballykuock is four miles south-south-west of Ben Croaghan, 

 No. 26. This is in the low ground at the western base of the moun- 

 tains. No limestone has been quarried here ; but a trial was made for 

 it, at the bottom of the basalt, and about the excavation are found 

 pieces of flint dug out of it. • It was evidently not worth working, 

 being too thin. No rock being visible in the wide flat valley adjacent, 

 the nature of the underlying rock, whether red sandstone or mica 

 slate, cannot be determined. 



28. Corkey is three miles south of Bally knock, No. 27, aud about 

 half a mile north-east of Checker Hall. Here are two pretty large ex- 

 cavations made in search of limestone. The basalt rises in the moun- 

 tain to the east of the locality. A remarkably green vegetation is seen 

 round the old pits, and scattered fragments of flints. Tradition says 

 the layer of lime and flints here may be about three feet thick. Like 

 Ballyknoek, it was evidently not worth working. From the size of 

 the pits, the bed appears to have been followed inwards from the out- 

 crop 20 feet. This is the most southern place in this valley where any 

 trace of limestone has been found. 



29. Carrivecashel is about five miles north of Corkey, and two miles 

 south of Armoy. It is on the west side of the valley of the River 

 Bush, and the limestone here lies nearly level, but is covered by trap 

 on the west side, which accumulates a little in that direction. The 

 limestone of the quarries here is very impure : about half the mass 

 appears to be composed of flints, which are left in large heaps, as rub- 

 bish, in the quarry. 



30. Limehill is less than a mile south from Armoy. Lime is quar- 

 ried extensively here, and is much purer than that at Carrivecashel, 

 No. 29. 



31. Balleny is a mile north of Armoy, and about five miles south- 

 west of Ballycastle, and 270 feet above sea level. There is a depth of 

 25 feet of the limestone visible here : what is below the present bottom 

 of the quarry is unknown — perhaps 20 or 40 feet more. A large area of 

 about eight acres has been excavated. To the west and north of this 

 place is all bog, and so flat at this same level, without any hill or hum- 

 mock of other rock, for a mile or more, that it affords a strong pre- 

 sumption that all the flat bog has limestone under it, the same as at 

 Balleny. If there be good grounds for this view, there may be 600 or 

 800 acres of limestone under that bog, covered over only with some 

 drift gravel, and the bog on top. The townlands adjacent, which oc- 

 cupy a part of the flat bog, and likely to contain limestone, are — Bal- 

 leny, north and east end; Ballykenver, north end; Bunshanacloney, 

 east side; Monanclogh, west side; Magheramore, west side; Lower 

 Moyarget, south end ; Mazes, east border. 



32. Knocklayd. This mountain lies from one to four miles south 

 of Ballycastle. The limestone zone in it appears to lie level ; and its 



R. I. A. PROC. VOL. X. 2 Q 



