[[underlined]] 1892 
November 27. [[/underlined]] 
Examine the exposures on [[insertion]] A Kansas Ave [[/insertion]] the 
road that leads from the Rock Creek electric railroad down the ravine to 
the Zoological park, foot of Gamier Heights. They are the most 
interesting of the kind I have seen and present a repetition of the 16th 
street cut on a much finer scale. The disturbed materials contain more 
Potomac clay and some of the pockets are two feet in diameter, dark 
colored and full of comminuted vegetable matter. 
Just below the short turn to the west on the north side of the road they 
are about 25 feet in thickness and rest squarely on the undisturbed but 
decomposed Archean. This latter is inclined and stands at an angle of 
nearly 45°, the later deposit lying against it. The following is a sketch of 
this exposure: 
[[end page]] 
[[start page]] 
[[image: Pencil sketch showing the cross section of the location as 
described above.]] 
[[image labels]] 
Sand 
Clay lens 
Cobble 
Clayball 
Archean 
[[/image labels]] 
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 
