Dr. Berger on the Isle of Man, 59 



other, a subsidence to the south of the whole chain ** en masse" 

 took place, which caused the three dislocations referred to in the 

 course of this paper, and which are nearly at right angles with the 

 direction of the chain itself.* 



2. That the same subsidence may be supposed to have produced 

 the general dip of the stratified rocks to the southwards. 



* At Spanish head, on the spot called Kione-Gogan, (ahead resembling a noggin) the 

 strata have been rent asunder in two contrary directions. The contiguous sides being 

 now several yards distant the one from the other. The principal rent runs north and 

 south, the transverse one east and west, presenting an assemblage of four large square 

 compartments. 



Is this referable to the great subsiding pointed out above? or more likely, to the cause 

 that gave origin to the metallic veins, and particularly to the cross course at Foxdale ? 



The grey-wacke slate of Spanish head splits naturally into long beams 12 or 15 feet 

 long, fit for mantle-trees, and strong enough to bear the weight of the highest stack of 

 chimnics. Wilson's History of the Isle of Man. 



H 2 



