Considerable local carbonaceous material. (2) 15'6" Sandy shale, grey to reddish with grey + interlaminated, light brown sand. (one at base, one at top & one 2½ ft above bottom) [illegible] about 1½ ft. above base is bed of Ostrea (?1" locally). This horizon taken as marking top of middle shale minimum. (34+8) 3' Sand, alternating grey (somewhat bentonitic + shaley) and light brown. Capped by platy ss. (grey) layers. 5' Sand light buff, thinly bedded blocky. 2' Shale, light grey, extremely carbonaceous, with some interbedded sand and yellowish brown small concretionary masses (shelf former)