F. D. Chester—Distribution of Delaware Gravels. 195 
et, Feet, 
Back of Wilmington .__.. 264 Newark, Deliiiuevc cake 100 
‘Green Bank, Del... __ 269 |Elk Mills, Md......-..--. 166 
ack of Newport ______. 284 |Brewster’s Mill, Md. ..--.- 216 
Back of Stanton________ 249|Cherry Hill, Md._....-.- 255 
Milltown, ae ee 260 |Back of New Leeds, Md.. 360 
Pike’s Creek, Del. ._.._.- 92/Egg Hill, 370 
White Clay Creek Church, Gravelly Hill, Md...-.--- 388 
We ee 145 
FE ese figures it is seen that the shore line is by no 
means a level one, and to a person acquainted with the region 
disintegration, whereby all definite traces of a terrace have— 
been destroyed, and the author has found it to be generally true 
that wherever the gravels rose to great height, the underlying 
oes was hard and durable, and wice versa. At Newark the 
shore line rises only 80 to 100 feet above tide; here the rocks 
decompose rapidly, while between Stanton and Newport, along — 
the hills, the gravel rises over 200 feet higher, and here the — 
, a fine-grained quartzitic gneiss, is extremely durable. 
Also along the terrace between Gravelly and Egg Hills, the 
gravel rises to the greatest elevation along the line, while here 
mits of the gravels as the ragged remnants of what was once 
i terrace due to the varying durability of the hills on 
aytbpar ently the line of the terrace, mingled with the angular 
See of gneiss. In places in Cecil —_- 
oils into the region of gravel, I have ofte 
*eached the shore lee by ae piles of cobble stones on every 
