1 98 Charles Maclaren on 



if armed at its bottom with sand, but if armed with pebbles, 

 it will tear off the laminae, instead of cutting furrows in them. 



At Stranlonick, more than a mile further up in the glen, 

 there is a flattish mound of gravel and clay with blocks, which 

 is probably also a terminal moraine, though less distinctly 

 characterized than those just mentioned. It lies in the middle 

 of the valley, having diverted the river to the east side. It 

 measures about a furlong in length and breadth, rises from 10 

 to 30 feet above the stream, has a very uneven surface, with a 

 few blocks on it, and many dispersed through its mass. 



As already stated, a plain or meadow extends southward 

 from B, and in looking over this plain, the eye is arrested by 

 four very distinct mounds or hillocks, C, D, E, F, which are 

 probably remnants of one or more frontal moraines. Their pro- 

 files will be seen in sections 2 and 3 along the lines c d, and 

 ef. Mound C is about 600 feet in length ; its greatest breadth 

 250 ; its greatest height 25 or 30 above the plain, into which 

 it descends with gently sloping sides. (See section 2.) A 

 boulder of mica-slate, measuring three cubic yards, rests on 

 its west end. Mound E is 400 feet long and 200 broad, rises 

 with abrupt sides 30 feet above the plain on the west side, 

 and 40 on the east. An incision made by the river in its north 

 end (r, section 3) shows that it is composed of sand, gravel, 

 and blocks, without any trace of stratification, and on its un- 

 even top there are the remains of a small plantation. Mound 

 F is 200 feet long, very narrow, rises 30 feet above the plain 

 on the north side, 40 on the south. (See section 3). Mound 

 D is 210 feet long, 140 broad, and 30 in height above the 

 plain. It has two considerable blocks resting on it. Both D 

 and F are rendered picturesque by their sharp, well-defined 

 forms, and the tufts of brushwood which crown them. The ma- 

 terials of all the six mounds are apparently identical, a confused 

 assemblage of sand, gravel, and blocks ; and that of the plain 

 itself, as seen in the watercourse, seems much the same. 



But if these mounds be fragments of moraines, the glacier 

 which formed them must have rested on the gravel and clay of 

 the plain, and must have glided over them, as it glided over the 

 rock in the narrow valley above AB. Have we any proof of gla- 

 ciers travelling over a bed of such materials \ Yes we have, and 



