Hole #21 C.B Elevation 12 - 0 Surficial material 60 - 4 Interbedded siltstone and fine grained sandstone. 81 - 1 Grey and greenish grey silty claystone. Limey pellets and lenses. 106 - 9 Interbedded siltstone and fine grained sandstone. 110 - 6 Fine grained sandstone. 124 - 8 Grey silty claystone, limey inclusions. 140 - 0 Greenish fine grained sandstone. Some interbedded green siltstone limey stringers in upper 2 ft. 157 - 7 Green silty claystone, some interbedd- ed fine grained sandstone in upper part. 185-0 Black shaley claystone Marine Fossils 186-11 Coal HARLEM 209-8 Grey limey claystone, limey pellets. 218-0 Grey and red claystone. 223-8 Greenish grey and red limey claystone 231-9 Green silty claystone, limey stringers. 242-6 Green silty claystone, interbedded siltstone and fine grained sandstone. Limey stringers and pellets. 245-6 Green silty claystone, limey stringers. 262-1 Shaley interbedded siltstone, silty clay- stone, and fine grained sandstone. Few limey stringers. 263-5 Black clay shale. 264-6 Fine grained sandstone, fragments of black clay shale. 270-7 Grey shaley claystone, interbedded silt- stone and fine grained sandstone 272 - 3 Coal UPPER BAKERSTOWN 275 - 0 Grey limey claystone, large limey pellets. 276 - 10 Grey grading to black silty claystone. 282 - 5 Grey limey claystone, limey pellets. 83