164 9V TrIE *ASALttC COtTNTRY IN IREtANp* 



The promontory occupies the interval between Dunsete* 

 rick, and the Black Rock, at the end of Bushfoot Strand, 

 €!iffc. about four English miles; the facades commence at Black 



Bock, and increase in height until we reach Plcskin, where 

 the perpendicular part at the summit is 1/0 feet, and the 

 precipitous part from the bottom of the pillars to the sea 

 200. As we proceed on from Plesk'm to Dunseverick, the 

 height gradually abates, and is finally reduced to about 100 

 feet. 

 Tfcry slope In this whole space, wherever the precipice is accurately 



2rads' edVfUh P er P ena, ienlar, the several strata are easily distinguished 

 from each other, but where the slightest obliquity prevails, 

 a grassy covering is formed, that effectually conceals all be- 

 neath it; hence the face of the precipice seems much diver- 

 sified; the columnar strata in some places only exhibiting 

 detached groups of pillars, while in others they form exten- 

 sive colonnades. 

 . General ciN I shall now state the appearances as we approach and 



eumstances. coast tne promontory from the westward, noticing in this 

 first view of the precipice every thing that may be considered 

 as general, and reserving (as I did with you) for my return 

 in the contrary direction, a detailed account of the strata 

 taken separately. 

 The strata The first circumstance, that occurs to the attentive ob- 



than the sur- server on his approach, is, that although both the promon- 

 fcce. fory itself, and the strata composing it, ascend to the north- 



ward, yet it is not in the same angle, the strata being more 

 inclined to the horizon than the line tracing the surface 

 of the promontory, a fact which I shall account for after- 

 ward* 



From the Black Bock to the Giant* * Causeway (about a 

 Strata. mile) the materials, and their arrangement, are similar to 



those of the coast to the westward, viz. strata of table ba- 

 salt, generally separated by thinner strata of a reddish sub- 

 stance. 

 New arrange- At the Giant's Cans etc ay a new arrangement commences, 

 one of the little systems I have mentioned in other memoirs, 

 by the aggregate of which our coast is formed ; nature having 

 changed her materials, or their disposition, or both, every 

 two or three miles. To the system of strata comprehended 



betwee» 



