DETAILED RECORDS. 229 
Cherokee: Feet. 
Soft dai k grayish and purplish shale . 378-385 
Soft dark limestone; gas at 391 feet 385-391 
Soft black shale and. coal 391-395 
Soft gray sandy shale and shaly limestone 395-403 
Soft dark-reddish shale 403-408 
Soft dark shale with gray shaly limestone at 418-433 feet 408-443 
Soft gray limestone and brown and dark-gray sandstone 4-13-490 
Soft dark gritty shale and sandstone 490-505 
Soft dark-brown sandstone and dark shale 505-530 
Hard dark-gray sandy limestone 530-535 
Soft gray limy and sandy shale. 535-540 
Soft red and gray shale 540-550 
Soft dark-gray shale 550-560 
Soft gray limy shale 560-565 
Soft dark-gray shale with limy layers 565-61 1 
Soft red shale 611-619 
Soft light and dark gray shale 619-635 
Soft black shale 635-645 
Soft gray limestone and gray sandstone 645-655 
Soft dark bluish-gray shale and gray sandstne 655-680 
Soft gray shale 680-709 
Soft dark-gray, black, and brownish shale and gray limestone 709-746 
Soft brown and gray limy sandstone with black shale at 770-775 feet 746-810 
Soft brown sandy limestone 810-820 
Soft brown limy sandstone 820-845 
Hard brown limestone, Mississippian (?) 84.5-853 
Rig used, cable. Casing used, 10-inch, 31 feet; 8|-inch, 369 feet; 63-inch, 510 feet; 
5-inch, 709 feet. Enough water to drill with was found at 139 and 400 feet. A small 
flow of gas was struck at 391 feet, and at 440 feet the flow increased to 200,000 feet in 
twenty-four hours. A trace of oil was found at 505 to 510 feet, and a strong vein of salt; 
sulphur water at 770 feet, with a trace of oil. The well was plugged at 743 to 720, 550 
to 518, and 510 to 460 feet; an 8^-inch packer was set at 436 feet and the gas from 440 
feet saved. The rock pressure of this was 120 pounds. 
"The 99 feet of limy sandstone, from 746 to 845 feet, probably corresponds to the bed at 
767 to 865 feet in well No. 606. Perhaps the sandstone is Winslow formation and the 
limestone Morrow formation." — E. O. Ulrich. 
606. "Well near Bonner Springs, Wyandotte Comity. 
[Well begun in July, 1898; completed in February, 1899. Authority, S. J. Hatch. No samples. Geo- 
logic correlations by E. O. Ulrich.] 
This well record is of interest in connection with the preceding one, since the log shows 
not only the thickness of the Cherokee shale, the bottom member of the Pennsylvanian, 
but the underlying Mississippian limestones. A fossil shell brought up from 2,065 feet 
was pronounced by E. O. Ulrich to be probably a crushed specimen of Dinorthis subquadrata, 
indicating that the limestone bed from which it came corresponds in age to the Maquoketa 
shale of the central Mississippi Valley, the uppermost Ordovician, which, west of Mississ- 
ippi River, immediately overlies the Trenton. The well penetrates the Pennsylvanian 
and Mississippian series (Carboniferous) and rocks of Devonian, Silurian, and Ordovician 
age. 
