OF THE EARN AND TEITH. 



157 



Here we have in front the narrow ravine between the spectator and the 

 point R through which the stream passes ; and we might have argued that the 

 glen had once been closed, a lake formed, and that these terraces are the 

 former margins. But following the course of the deposits we find the terrace 

 c passing into the ravine and continuing especially along the right bank. And 



Sketch 5. — Dalvreck Bridge on the Turrit. 



what is more decisive, if you go to the other end and look across and up the 

 glen where the water comes out from under the Bridge of Dalvreck, the three 

 terraces come out distinctly as here given in sketch 5. On the one bank the 



Sketch 6. — Dalpatrick. 



second level b holds its course at a similar height above the river bed, while 

 in the other bank the highest level c passes'" out into the open going round 



* There is a beautiful section showing that it consists of finely laminated sands with a little 

 gravel and clay. 



VOL. XXVI. PART T. 2 T 



