I Explanation of the Views ^ in illustration of Dr, MacCidlocFs 

 Account of Guernsey^ and the other Channel Islands. 



No. 1 is a view of the small port and beach of the Creux in the Isls 

 of Sercq, exhibiting the gate of the Tunnel, through which is the 

 only entrance into the island. The adjacent rocks are of trap, 

 and in the distance is seen a detached mass of granite. 



No. 2 is a view of the Coupee in the Isle of Sercq, taken from the 

 smaller division of the island, called Petit Sercq. That part of 

 the isthmus, the furthest from the spectator, is traversed by the 

 soft vein mentioned in the Memoir, and is rapidly wearing down. 



No. 3 represents one of the granite veins in Port des Moullns in the 

 Isle of Sercq. The grauwacke has been washed away ; and part 

 of the granite itself, from the effects of rifts and decomposition, 

 has fallen down ; thus making a kind of rude door-way through 

 the vein. 



No. 4 is a general view of Port des Moulins. The rocks on the 

 right hand are of grauwacke-slate, as also are the three insulated 

 buttress-like rocks that appear in the distance. Behind the two 

 furthest of these is situated the granite-vein represented in PI. 3 : 

 the steatitical vein described in the Memoir lies also among the 

 distant cliff's. 



No. 5 is a view of Fourchi Point in the Isle of Alderney, represent- 

 ing the great fracture in the porphyry rock, of which this head- 

 land is composed. The open sea is the passage called the Race of 

 Alderney y and Cape la Hogue is seen in the distance. 



