The Ice-Sheet In Narrafjans^eft Bay. — WofuJ imrtli. 161 
has the appearance of being a remnant of a sand-plain made 
in extraglacial waters. 
NAYATT POINT STAGE. 
Between Rumstick neck and Nayatt point there is a narrow 
ridge of stratified drift deposits, which, for a portion of its 
length, exhibits the characteristic cross-section of typical 
glacial sand-plains. The best exhibition of this feature is to 
be seen about half a mile west of Rumstick neck. The road, 
going west, skirts the base of the sand-plain head, which is 
here cast into kames, and occasionally rude esker-like depos- 
its mounting on the northern slope. From the summit a plain 
extends southward, gradually giving wa}^ to well marked, 
though not trenchant, frontal lobes, which descend to sea 
level and are now being cut into by the action of the waves. 
Again, at Nayalt point, there is a similar section, but sea- 
erosion on the south and west has removed the frontal lobes. 
These two sand-plains attain an elevation of about 50 ( ?) feet 
and agree in this respect with the next northern or Barring- 
ton stage. Great interest attaches to the Naj-att stage from 
the nature of the deposit made at the ice-front between the 
well formed sand-plains. These are connected by a low ridge 
having some resemblance to a till-covered surface. This ridge 
has an elevation of about 30 feet above the sea and evidently 
marks a point of minimum deposition along a nearly straight 
ice-front. 
These plains merge eastward into the Rumstick neck north- 
and-south gravelly ridge, the origin of which is obscure. The 
abundance of boulders and the presence of kames suggest its 
deposition in the marginal portion of the ice-sheet, probabl}^ 
on the southeast side of a re-entrant angle. 
BARRINGTON STAGE. 
That the front of the ice lay for a time along the south side 
of the Barrington river, between tlie villages of Barrington 
and Drovvnville, R. I., is shown by the well-formed glacial 
sand-plain which occupies this interval. The Providence, 
Warren and Bristol railroad runs along its southern margin. 
On the north, the plain rises abruptly from the low and almost 
flat intraglacial ground, broken only by a winding, low, wide, 
ill-defined esker, which is confluent with the plain. The out- 
lines of this esker are roughly shown l)y the 20 and 40 feet 
