350" Mr. Farey's Statement of Geological Fads 



Coal, or stone Coal, which has lately begun to he worked : 

 Ironstone is found above the Coal here, Mr. D. p. 75 : the 

 dip is easy, to the south, p. 76 : some of the levels are 900 

 yards long ; a bed of Coal has been worked, by pumping, 

 below the level of the sea, p. 77: 100 men are daily em- 

 ployed in these works, p. 7S, and as might I think from 

 their number, be expected, are rather " lazy and indolent," 

 p. 80. Fine Poitsrs' Clay is found near Fair-Head, Brick- 

 clay, excellent Fireitone, Scythe-stones of the best quality, 

 and Glass Sand; and Quarries of excellent Freestone are 

 wrought in these measures, pases 84 and 85. Near Ballv- 

 castle there is a Chalyhtate spring, and another S of it 

 near Knocklaid Mountain : and an aluminous vitriolic 

 spring near Ballycastle, p. 13S. 



At Brachaville near Coal-Island northward of Dungan- 

 non in Tyrone, the measures, according to Mr. G.'s Notes, 

 are as follows ; viz. 



Yds. ft. in. 



Sand 8 O 



Craw Coal, with metal covering it, 1 8 inches 2 



Clay and white Stone, &c 8 



Coal 2 4 



Fire Clay, hard Clay, Black Bind, and while 



nieasu res ] 7 



Main Coal 2 O 



37 2 4 



Thirtv yards deeper, they come to another Coal three feet 

 thick (the yard Coal), but it is sulphureous and full of wa- 

 ter, and therefore now little worked, though it runs regu- 

 larly through the Country: it dips one yard in five and has 

 a gO(od roof. 



Under the west facade of Fair-Head NE of Ballycastle, 

 Mr. Davy, when visiting Dr. R. found Hue Limestone, 

 App. p. 30, which further shows the variety, in the lower 

 and unexplored j^art of these Coal-measures; to which I 

 think may probably be referred, the " small eruption of 

 white Limestone near Templepatrick," in the interior 

 of the Basaltic district, App. p. 25,, and the "similar 

 eruption near Broiighshane," p. 26; of the first of 

 tliese Mr. D. says, p. 69, that from the quantity of silex 

 which this stone contains, it will not answer for making 

 iime ; and I think it vastly more probable, that these arc 

 ren)ains of the lower part of the Coal-measures, resting on 

 the Basalt, than parts of i»s understratum, elevated 1200 feet 

 or more; to say nothing of the dissimilarity of the sub- 

 stances. 



