Page:Transactions of the Geological Society, 1st series, vol. 4.djvu/334

 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 objects 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 accumulated 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, I need not enter into further details respecting it. The accompanying views 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