of Ancient Glaciers in Scotland. 341 



ductive track, at considerable expense caused it to be much 

 reduced in height, and now the plough (still with difficultv) 

 jiasses annually over it*. 



I have likewise observed several remains of moraines along 

 the vale of the Ettrick. About three quarters of a mile above 

 its junction with the Tweed, at the south end of the fine new 

 bridge upon the road to Selkirk, the approach to the bridge 

 is cut through a very bold one. It sweeps round the lower 

 end of the rich haugh of Lindean, and forward to the side of 

 the water, where it turns obliquely to the stream. About 

 half a mile further up the river at Bridge-heugh, there is an- 

 other upon the same side of a still bolder character, forming 

 an immense bank about sixty feet high, crossing the vale 

 about two-thirds of its breadth, which is there about half a 

 mile broad, it having evidently once crossed it to the opposite 

 side, as a part in a direct line is still remaining. Following 

 up the water, we observe vast lateral moraines on each side. 

 Upon the north there are three curvilinear ranges of hillocks, 

 some 20, 40, and 50 feet high; these join towards the west, 

 in a cross mound, terminating in an abrupt precipitous angu- 

 lar ridge at the side of the water, which at present undermines 

 its broken end. This is fully sixty feet high, and, like the 

 one at Bridge-heugh, seems to have crossed the vale, by the 

 evidence of a remaining portion boldly projecting out of the 

 south bank, a little below the extensive factory of the Messrs. 

 Browns. Gentlemen, these are a iev/ of the leading proofs 

 by which I have attempted to prove the former existence of 

 glaciers along the valleys of this district. You are all more 

 or less familiar with those remarkable mounds I have pointed 

 out; and if you turn to M. Agassiz's description of moraines, 

 you will find that these are similar in every respect. 



As a further proof, I have observed the striated and grooved 

 appearance of the rocks in many places in this neighbourhood; 

 particularly at a hill nigh Redhead, by the vale of the Caddon, 

 and even in our own town, at the back of the Buckholmside 

 factory. 



At a land-strai;; or water-shed, between the Gala and the 

 Tweed, about two miles and a half west from Galashiels, on 

 the north side, upon a steep spur of the Meigle Hill, which 

 here rises at an angle of near thirty degrees, there are three 

 lines of round hollows with gutter-like tracks between. (See 

 No. 3.) They are known by the name of the " Meigle Pots," 



* This seems to be a beautiful example of a terminal moraine united to 

 a lateral one, very similar to that of the Viesch, describeil by Aga?siz, 

 and rei)resented in tlic 9th Plate of his Eludes sur las Glaciers ck la Suisse, 

 —J. E. D. 



