Wisconsin Kettle Moraine. 225 



the Delaware river, below Belvidere,^ The descriptions of this 

 range tally quite perfectly with that of the Kettle moraine. This 

 range, however, lies on the margin of the area of northern drift, 

 while the western one is medial in position, and at some points is 

 quite distant from the margin. It will be observed, nevertheless, 

 that this distance is greatest, in general, at the west, and that in 

 Ohio it becomes very greatly reduced, so that the fact of coinci- 

 dence on the Atlantic coast, presents no reason for supposing the 

 ranges to be distinct. But, whether distinct or not, is a matter 

 to be settled by observation, and it is to be hoped that it will not 

 long remain undecided for want of it. The extension of the New 

 Jersey moraine westward has not, so far as I can learn, yet been 

 traced, but the survey of Pennsylvania, in progress, will, doubt- 

 less, soon leave nothing to be desired, so far as that State is in- 

 volved. 



To the eastward, Mr. Warren TJpham has recently been en- 

 gaged in studying its probable continuation in southeastern Mas- 

 sachusetts. In a personal communication he writes : " A very 

 <;lear line of terminal moraine extends along the chain of the 

 Elizabeth islands southeast of Buzzard's Bay ; thence it bends to 

 the northeast and north as far as to North Sandwich, when it turns 

 <it a right angle to the east, and extends through Barnstable and 

 other towns to Orleans, running along the east and west portion 

 of Cape Cod, and terminating at its east shore." " This terminal 

 moraine, like the ' Kettle moraine ', is not at the outmost limit 

 reached by the ice sheet ; for hills, in series nearly parallel to the 

 moraine already described, and similarly composed of glacial 

 drift with many boulders, occur on Martha's Vineyard and Nan- 

 tucket islands, corresponding, perhaps, to the terminal moraine 

 which forms the ' backbone ' of Long Island. * * The moraine 

 of the Elizabeth islands and Cape Cod has a length of about 65 

 miles." It may be suggested that the range along the Elizabeth 

 islands may correspond to the northern branch of the Long Island 

 moraine described by Prof. Mather, and that, as Mr. Upham sug- 

 gests, that of Martha's Vineyard and Nantucket corresponds to 

 the southern. 



1 Ann. Kept, of State Geologist, N. J., 1377, pp. ^itstq. 



15 



