Vol. 58. | GLACIER-LAKES IN THE CLEVELAND HILLS, 543 
The other example of a deserted oxbow is on the western side of 
Evan-Howe Slack. It is, like the last, of crescentic form, but 
the crescent is turned in the opposite direction. It is about a 
quarter of a mile long, some 40 feet deep, and opens on the wall of 
the main valley at an altitude of about 50 feet. I consider that in 
this case the main Evan-Howe channel was first formed, and that 
it was closed by a slight forward movement of the ice, probably 
the same as that which closed the Brown-Rigg channel. On the 
retreat of the ice the old channel was still the deeper, and flow 
along it was resumed. 
Fig. 22.— Brown Rigg viewed from the west side of Jugger-Howe 
Beck. (The deserted oxbow is shown on the left of the ridge. 
Jugger-Howe Beck in the foreground.) 
[From a photograph by Mr. Godfrey Bingley. | 
Before taking final leave of this section of country, I may just say 
that the discovery of this complex reticulation of channels cut by the 
overflowing waters of Glacial lakes, out of a gently-sloping plateau 
of at present heatherclad moors, impressed me more than any other 
illustration of the effects of the Ice-Age that I] have seen. The 
necessity for some explanation dependent upon the admission of a 
great ice-sheet in the North Sea has never appeared to me more 
imperative; and I earnestly hope that the few distinguished British 
geologists who still find themselves more impressed by the diffi- 
culties—great and real difficulties—in the way of the acceptance of 
