774 



T. G. BONNE Y ON THE SERPENTINE AND 



The Serpentines of the Coast. 



To settle the petrological relations of these rocks to the " dioritic" 

 group it is hardly necessary to go beyond the vicinity of Lendalfoot. 

 For example, just at the back of the cottages is a great mass of the 

 " dioritic" rock, apparently included in the serpentine (fig. 1). The 



Fig. 1. — Plan of Dioritic Rock in Serpentine, Lendalfoot. 



Mj| Serpentine. The " dioritic " rock left blank. 



Fig. 2. — Dioritic Rock and Serpentine, Lendalfoot. 



Explanation as in fig. 1. 



latter in one place forces itself between two huge blocks in a wedge- 

 like tongue ; in another place a rhomboidal prominence, about 5 feet 

 long, severs two " dioritic" blocks and supports a third (fig. 2) ; and 

 in yet another case the serpentine still adheres to the other rock for 



