[[underline]] 1892 [[/underline]] 
November 6-continued. 
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redeposited in the Miocene, but regularly in place in the green sandy 
clay full of glauconite. Both conifers and dicotyledons stems occur. This 
is certainly a poser. Can these clays be of Potomac age? [The green 
color is not glauconite and the bits belong to the Aqua Creek series.] 
[[underline]] November 20. [[/underline]] 
Made an excursion with Vick Mason to the south shore of Doag Creek 
and all the way round the White House bluffs to the next creek below. 
There are no bluffs or exposures much above the mouth of Doag and 
the Pleistocene and Chesapeake occupies the whole country. The most 
northwesternly exposures show the former of these formations coming 
down to the high tide mark in the form of brownish clays and ferruginous 
sands. Near the White House now occupied and not far down on the 
Potomac shore proper a very green clay, apparently Eocene 
(Pamunkey) 
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but as far as observed without fossils crops out between tides forming 
the floor of the beach and sometimes rising a few feet into the bank. 
Over this in some places is a stratum of gray sand closely resembling 
that of the Potomac, but finer and softer than that usually is. If seen in 
the right position no one would question its Potomac character. The 
Potomac sands begin to be seen at the base of the section below the 
old pavilion, now in ruins, and rise suddenly to a height of 30 feet at the 
bluff from which fossil plants have been collected on all former visits to 
this locality. This locality has undergone great changes since I was there 
last. The overhanging mass which then threatened to fall and bury us 
while at work has indeed fallen and carried with it or buried beneath its 
ruins the entire lens in which the plants occurred. 
Local field note-book of Lester Ward 
Transcribed and Reviewed by Digital Volunteers 
Extracted Oct-11-2015 07:35:03 
Smithsonian Institution Transcription Center, Smithsonian Institution Archives 
