277 



eastern part of the cut, while it has entirely disappeared from the western 

 end. It is likely that the layer is thicker than two feet, as other exposures 

 seem to show. The area between cuts 2 and 3 is a large compound sink. 

 On the north side of the track, the INIitchell is found about thirty feet below, 

 with ten feet of hard, light-colored sandstone overlying. On the south 

 side, fifteen feet below the track, three feet of the lower limestone out- 









Si. 



Fig 



crop. Shale occurs below it, but most of the section is covered. In cut 3 

 the following section was obtained : 



4— Soil 6 ft. 



3 — Sandstone, ripple-marked and cross-bedded 31.5 ft. 



2— Shale, blue, soft, clayey S-11 ft. 



1 — Limestone, lower, in ditch. 



In the eastern part of this cut the solution of the underlying Mitchell 

 has again caused a synclinal folding of the beds. The shale No. 6 (of 

 gen. see.) first occurs in the top of the next cut 4 and continues in 5, 6, 7 

 and 8. It is a sandstone or arenaceous shale at the bottom, becoming more 



