The Scorton moraine may never have been a continuous belt of mo- 
rainee If it had been, the amount of erosion necessary to remove all 
of it except the few scraps that remain today could not have occurred 
without producing effects observable in adjacent terrains, Such se- 
vere erosion would surely have cut deeply into the Sandwich moraine 
alsoe Yet only tiny gullies are found on the slopes of that moraine, 
and even its steep northern edge has been only slightly dissected. 
Some valleys should likewise have extended their headwater gullies 
deep into the hilly remnants of the Scorton moraine, but no such gul- 
lies are found. It is concluded, therefore, that the Scorton moraine 
was deposited originally as a discontinuous belt. The following dis- 
cussion embodies ore plausible hypothesis concerning a way in which 
that may have been accomplished. 
If the ice retreated from the Sandwich moraine largely through 
down-wasting of the ice surface and consequent thinning of the ice 
sheet, it would produce a very ragged margin along which large masses 
of ice may have ceased to move at, all. In and around these at the 
lowest places, glacio-fluvial gravels would be washed. Readvance of 
thicker portions of the ice sheet from the north would push the ice 
front forward as a deeply-indented, saw-tooth edge along which depos- 
its would be concentrated in an irregular mannere Masses of inactive. 
ice and patches of glacio-fluvial gravels between them,’ suchas may 
be seen near receding glaciers in Alaska today, would te overridden 
ty this advancing ice. Till might then be piled up or smeared on 
top of the patches of bedded sand and gravel. Later, wher all of 
the ice had melted away, hills of gravel capped with till would re- 
main where the gravel patches had been, and the lower ground around 
them where stagnant ice had stood might te covered unevenly with thin 
till let down from the ices If later deposits of sand were spread 
by some agency over these lower areas and blanketed the Ga, the 
area would then consist of isolated, till-veneered hills of gravel 
standing like islands in a sea of sand. This is essentially the con-= 
dition of the Scorton moraine today. : 
Low Sard Plains North of the Sandwich Moraine 
The low sand plains between the hills. of the Scorton moraine 
and the northern edge of the Sandwich’ moraine consist almost exclu- 
sively of uniform, sorted sand, as may be seen in several score of 
pits along roads in the northern part of Sandwich township. At few 
places is-the material coarse enough to be called sandy gravel. The 
layering is regular and nearly horizontal in all pits, and no blocks 
are embedded in these deposits. The surface in some patches,a few 
acres in area,is flat or imperceptibly inclinedselsewhere it is gen- 
tly irregular with swells:and hollows. ; 
Apparently the deposit was laid in a broad trough uncovered 
between the diminishing ice sheet on the north and the high Sandwich 
moraine on the southe The fine bedding and sorting show that this 
is a current-vorrie deposit,and it suggests that the material was de- 
posited so far from the main ice sheet that only the fine,washed ma- 
terial remained. Soattered small kettle-holes mark places where ice 
masses were trapped beneath the sande 
