-196- Section 23 contd. Thickness (feet) 2. Covered, probably gray shale ........................ 34 1. Limestone, medium to dark gray, lower 13 feet in 6 inch to 4 foot beds; middle 22 feet of rubbly unevenly bedded lime- stone, 6 inch beds, poorly exposed; upper 11 feet more massive in 4 foot beds, gradually becoming thinner near top, coll. 23-1 (upper 3 feet), Triti- cites comptus, T. ventricosus ............ 46 Covered below Section 24 Measured up the southside of the Wolf Camp Hills about 200 yards west of section 25, in the eastern portion of the area. Top of ridge Thickness (feet) Gaptank Formation 9. Limestone, medium gray, massive beds, 4 to 6 feet thick, has a 6 inch band of fusulinid and brachiopod hash at base, coll. 24-9, Triticites beedei ............ 12