324 Dr. Mac Culloch on the Parallel Roads of Glen Roy. 



abruptly at both ends. That one which is continuous with the upper 

 line of Glen Roy is prolonged into Glen Turit. Of the lower one 

 I unfortunately neglected to remark, from the multiplicity of ob- 

 jects calling for attention at the same time, whether it was anomalous, 

 or whether, as it appears to the eye, it is not continuous with the 

 third and lowest in Glen Roy. I shall forbear pursuing their 

 course into Glen Turit, as the description of this glen will find its 

 proper place hereafter. 



Passing over therefore the description of this glen, a great accu- 

 mulated mass of terraces similar to those in the upper part of Glen 

 Roy is seen at the junction of the two streams which issue from it, 

 and from the small glen or cory whose name I could not discover, 

 but which is delineated in the map.* The compound mass offers 

 a surface of different heights, but the highest of them corresponds 

 precisely in level with the highest terraces at the top of Glen Roy, 

 and equally so with the lowermost line of the three for which Glen 

 Roy is remarkable, and which now first appears continuously on 

 the right side, having been some time visible, though in an imperfect 

 state, on the left. The minor terraces which skirt the river are also 

 visible here, and accompany it for a considerable space downwards 

 along the bottom of the glen, which still continues to present an 

 irregular alluvial flat ; but as it is sufficiently marked in the plan 

 and sections, 1 need not enter into further details respecting it. "f 

 The accompanying viewsj will also afford an additional and a much 

 better illustration than any description could do. 



Independently of these compound and minor terraces which are 

 accumulated below the lowest line, there are also fragments and 

 parts of irregular terraces in various places at a level above it, 

 besides considerable channelled alluvia forming a sort of conoidal 



* Plate 18. + Sect. K, Plate 21.— Plate 18. + Plates 14, J 5. 



