192 Charles Maclaren on 



The section, Fig. 5, passes right along the middle of the 



Fig. 5. 



valley. S is the wall of rock which forms the southern boun- 

 dary of the valley ; M the moraines ; K the meadow at the 

 north end of the valley. 



Fig. 2 is a section across the valley, showing its form ; the 

 oblique lines show the dip of the strata, which is to the west 

 at an angle of 10° or 12° ; m shews the position of the moraines, 

 and t marks the place where portions of the rock, probably 

 harder than the rest, protrude through the covering of turf. 

 On the east side, as already mentioned, the strata present 

 their sides, and on the w r est their edges to the surface, and 

 this is apparently attended with a difference in the distribution 

 of the alluvial matter. 



Fig. 4 is a section along the lower part of the channel of 

 the stream, showing the depth of the moraines as laid bare by 

 the action of the water ; a, the uppermost mound, has its sur- 

 face clothed with grass, and marked by the ploughshare. At 

 the river side, it presents an escarpment of clay and gravel, 

 varying from 20 to 70 feet in vertical depth, but the height 

 from the rock to the convex top is fully 100 feet. Its breadth 

 across the valley is about 250 feet, and must have been 350 

 before the river channel was excavated. 



The second mound, b, is divided from the first by a small 

 ravine, cut by a streamlet ; its top is about 15 feet lower 

 than the top of a ; its height above the stream fully as great ; 

 it is a little broader, and it is fully 500 feet in length, from 

 south to north. Fig. 3 is a view of it taken from a point a 

 little below the village. Its top, n, o, p, and its northern de- 

 clivity, were beautifully green in November last, and, being 

 divided into well-marked riggs, must have been under the 

 plough very recently. The riggs are rudely represented in 

 the figure by vertical lines. The dark crooked space below n, 

 is the water course. 



The elevations c and d have not the regular form of mounds 



