A TOUR ROUND NORTH WALES. 207 



" about twenty-five feet long and fix 

 *' broad : I climbed up,*' fays this Gen- 

 tleman, " and on ilamping it with my 

 " foot, felt a ilrong tremulous motion from 

 " end to end. Another, eleven feet long 

 " and fix in circumference in the thinneft 

 " part, was poifed fo nicely on the point 

 " of a rock, that to appearance the touch 

 " of a child would overfet it. A third 

 " enormous mafs had the property of a 

 " rocking ftone. 



" Many of the Hones had bedded in 

 " them fhellsj and in their neighbour- 

 " hood I found feveral pieces of lava. I 

 " would therefore confider this moun- 

 " tain to have been a fort of wreck of 

 " nature, formed and flung up by Ibme 

 " mighty internal convulfion, which has 

 " given thefe vaft groups of flones for- 

 *' tuitoufly fuch a ftrange difpofition ; for 

 " had they been the fettled ilrata bared 

 f of their earth by a long feries of rains, 



" they 



