140 HISTORY OI 



cles, edged \vith stones, about twelve feet in dia- 

 meter. This fortification is exactly similar to that 

 on Conwy town mountain, on Penman mawr, and 

 in many other places ; and it answered the same 

 purpose, not for a constant residence, but only as 

 a place of refuge on the approach of an enemy. 

 Near this place is a maen sigl, or rocking stone, 

 called Ori/d Tudno, St. Tudno's cradle. It is an 

 immense stone, which is so equally poised, that a 

 very slight degree of pressure will enable a person 

 to put it in motion. Not far from the mine works 

 at Maes y Vacrell is a rude structure, consisting 

 of upright stones surmounted by another trans- 

 versely : the name of this cell is Lletty y vilast, 

 the stone of the greyhound bitch ; this appellation 

 was in allusion to the British Ceres, who was svm- 

 bolized by the female greyhound. There is a large 

 cromlech called LJechy vilast, in Glamorganshire, 

 and another in Cardiganshire ; and Gwal y vihist 

 also in Caermarthenshire. The greater part of 

 the population of Llandudno derive their liveli- 

 hood from the copper mines, which have been car- 

 ried on in every direction. The discovery of rude 

 implements in old closed up shafts, such as ham- 

 mers of stone, and chisels of bone thoroughly im- 

 pregnated with copper, is an evidence of iheir 



