KENDALL : NOTES ON SUPERFICIAL GEOLOGY OF THE VALE OF YORK. 91 
Bunter sandstone, a broad swampy breach occurs through which the 
stream flowing from Marston Moor makes its way, and beyond this, 
a series of parallel ridges, notably that upon which the village of 
Healaugh stands, may be seen, which are identifiable as the lateral 
moraines of the great glacier. 
The return to York will be made through the villages of Askham 
Richard and Acomb, so that a fragmentary and confused terminal 
moraine may be seen which runs in rough parallelism to the York 
and Bilbrough moraine, and observations will be made of Askham 
Bog, an inter-morainic swamp, Avhich is hemmed in between the two 
ridges. 
The second day's excursion will be devoted to the eastern 
portion of the York moraine, passing through the villages of 
Grimston Smithy and Holtby. At the former place there is an 
exposure of gravelly moraine, where an ancient interment containing 
two human skeletons was discovered last Christmas ; at the latter 
place a magnificent railway section is seen cutting completely through 
the moraine, which there consists mainly of true boulder-clay, un- 
stratified, and containing large numbers of well-scratched boulders. 
The excursion will be extended across the Derwent at Stamford 
Bridge to the outer (more southerly) moraine at High Catton, where 
excellent sections may be seen in a series of gravel pits. 
Beyond High Catton shreds of other moraines may be traced 
near the edge of the Wold escarpment, but they are far less perfect 
than the two which I have called the York and Escrick moraines 
respectively. 
