14 TRANSACTIONS OF THE [ocr. 15, 
In this connection we also have a highly significant series of 
facts on Staten Island to which attention has not been previ- 
ously called. In that portion of the coastal plain area near the 
Narrows, upon which the moraine rests, the underlying strata are 
folded and tilted exactly as they are on Long Island and Martha’s 
Vineyard. Up to this point the evidences of disturbance have 
been continuous. As soon, however, as the line of the moraine 
leaves the plain and bends around over the archeean area all 
indications of disturbance cease absolutely, and the topography 
of the plain is as level and uniform as at any locality in New 
Jersey or on Long Island to the south of furthest ice advance- 
ment. Further than this, the signs of disturbance do not reap- 
pear until the line of the moraine is again met with on the plain. 
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ee oa pe ore 
Aili i 
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Fic. 3. CRETACEOUS CLAY INCLUDED IN BOWLDER TILL, KREISCHER- 
VILLE, STATEN ISLAND. 
Between these two points they are absolutely absent, and yet a 
glance at the region will convince any observer that had the ice 
advanced over this portion of the plain the phenomena of 
crumpled strata would have been continuous from one extremity 
of Staten Island to the other. This one little break seems to 
have been specially preserved as an object lesson in this con- 
nection. 
If there are any evidences of crumpling or folding in an east 
and west direction in connection with the moraine west of the 
coastal plain in New Jersey, or in the plain south of the mo- 
raine, I have yet to see them. Dr. N. L. Britton has mentioned to 
