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[[underline]] 1892
December 5. - continued. [[/underline]]
Moreover, it seems to extend below the materials of the beach and form the true base of the bluff. Above the White House it certainly occupies this position and has a much greater thickness. This adds another to the many enigmas of this region, most of which hint at least at the possible post-Tertiary age of all the disturbed sands and gravels containing clay inclusions.
From this point to the White House everything is obscured, and the hillside back of the house is flanked by a heavy bed of Lafayette gravel.
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[[underline]] 1892 [[underline]]
December 18.
Made an excursion with Vick Mason along the Atlantic Coast Line R. R. from Alexandria southward. Columbia is alone seen to Mallow. 200 yards west of Mallow is a low cut (12 ft.) into cobbles & loam above and 6 feet of nondescript mottled clay below.
On the Wash. & Alex. R. R. 1/4 mi. beyond (crest of) Bush Hill near the 24 " [[Ditto for: mi.]] (11) mile post Chesapeake occurs at level of road bed. but just beyond this a stream seems to cut through this and expose Lafayette gravel below. The whole is the product of wash. Half a mile west of this are deep cuts in both railroads, and these exhibit beds of marine Tertiary nearly 40 feet thick barely capped with Lafayette. The upper portion shows the usual phases of the Chesapeake, clay, sand &c of various colors, & below is a heavy bed of gray sand resembling Potomac, but always containing glanconite, and the grains rather fine. It seems, taken altogether to 

Transcription Notes:
Vick Mason is Victor L. Mason