1916.] THE DEPOSITS. 377 



are the beginnings of. the valleys leading down to the Grantez 

 Farm, and looking to the same curves now visible above the 

 valleys themselves he vsill again be struck by the regular 

 trend of those curves towards the valleys. 



At first it will undoubtedly be conceived that the curves 

 are due to the action of rain, and so, in fact, they are as 

 regards their recent surfaces, but on going up the valleys and 

 closely examining the rocks on the upper valley margins it is 

 seen that these have been smoothed in the direction of the 

 slopes. This peculiarity is also seen in the St. Saviour valley 

 sides. It will now be seen that these rock margins are 

 responsible for the shapes of the hills and that ice erosion is 

 primarily responsible. 



The second valley is that of Moulin Huet, where we have 

 a mass of valuable evidence (see Diagram No. 7). 



Diagram No. 7. 

 Diagraniatic Representation of changes in Moulin Huet Valley. 



1. Original water-cut valley; 2, Frost- detached stones fallen from the 



cliff ; 3, Present water streams. Altogether inadequate to produce the 



effects shown ; 4, Present outline of valley. 



Note gravel in interspaces of rubble. 



The section at the base of the valley, as seen from the 

 beach, presents the following features : — 



The bottom of the section is formed of angular stones 

 which it is plain to see have fallen from the rocks above them 

 along the sides of the valleys. These are stones that have 

 been detached from their places by frost, and wherever the 

 valley sides were steep enough they fell to the bottom. The 

 section shows that this was not a continuous process but an 

 intermittent one, for in between the stones there are deposits 



