772 



A. C. VEATCH 



truncated folds of the older beds. It differs from the older 

 Jameco in the small amount of erratic material it contains, and 

 from the still older Pensauken in the very slight weathering of 

 the compound pebbles. On the north shore Woodworth has 

 shown that it was deposited as a very level plateau-like plain, 

 reaching a height of over 200 feet. Mr. M. L. Fuller has now 

 proved that it underlies the moraine and occurs south of the 

 moraine in the Half Hollow Hills and the southern end of the 

 West Hills. It is known to underlie the Wisconsin outwash in 

 the plain to the south at an inconsiderable depth and to occur at 



Fig. 5. — Section along the line ab of Fig. 4, showing portions of (i) Wisconsin; 

 (2) Manhasset; (3) Sankaty; (4) Jameco; (5) Cretaceous beds, and east side of old 

 valley. Numbers refer to the Brooklyn water-works test wells. 



Far Rockaway. It is in this region that its position is definitely 

 fixed between the Sankaty and Wisconsin (see Fig. 5) . 



This formation seems to represent waterlaid material when 

 the ice was at no very great distance to the northward. The 

 greater part of it is regarded as the equivalent of the Tisbury of 

 Woodworth for the following reasons: (i) deposition between 

 the Sankaty and Wisconsin; (2) deposition after the main 

 folding of the older beds; (3) marked nonconformity between 

 it and the overlying Wisconsin; (4) similarity of formation ; (5) 

 similarity of elevation. 



A portion of the folded Manhasset of Woodworth may be 

 referable to the Jameco, but the evidence is not sufficiently 

 clear at present to warrant such a reference. 



The Vineyard interval. — As in the New England islands, the 

 Manhasset is separated from the Wisconsin by a period of uplift 



