May 27 
[[left margin]] 23 400j- [[/margin]] 
6663 - Sandstone at top of Lone Star school section, 3 miles E of 
Fieldon 
[[left margin]] 400k NW [[/margin]] 
6664 - uppermost 6' at corner NE 1/4 SW 1/4 16-11S-2W, Locality in 
wooded ravine east of last house on road. House located at angle of 
road at d in Gilead. 
May 28 
6665- Jerseyville Hollow - top beds of Cedar Valley. Up Daggett Hollow 
- for about 2 miles. Silurian all the way 
[[left margin]] 400-1 [[/margin]] 
Brussels 6666 
Roadside just W of bridge 1/2 mi W of Brussels. Section from top down 
A-light gray shale 
B- Sugary white ss with Atrypa and large Spirifer like "iowensis". 
C.- 2.1" inches yellow weathering earthy irregularly bedded Is. with 
Cystiphyllum, Spinatrypa, Cranasua with color 
D- Limestone bed jammed with thin Cystiphyllum 
6666d 
[[margin image with 8 sections with the following measurements in form 
of column]] 
A 
2’ B 
21" C 
32" D 
18" E 
12" 12" F 
13" G 
24" H 
Blue shaly Is. I [[margin]] 
G. Arthur Cooper - Field notes, 1966 
Transcribed and Reviewed by Digital Volunteers 
Extracted Nov-02-2015 11:09:05 
Smithsonian Institution Transcription Center, Smithsonian Institution Archives 
