mixed throughout. J 6.6 Platy, silty sandstone, fine-gr in beds up to 0.8ft. Shot with vertical worm tubes, tubes or trails on bedding, some ripple marked K 4.7 Siltstone, argillaceous, platy with some zones dk gr to bl silty shale. Laterally becomes more shaly - also thinned as bottom rises, Grades into J below. L 1.0 Ledge silty fine gr ss, withs Fe bot in vert cracks + surface is somewhat argill. M 4.10 Shale, blacky fissile, with thin layers of silt. (B>52) 1.5 chiefly argill. siltst with sh. interbeds, upper 2.15 sh. N. 3.0 Interbedded dk sh, light-gr thin beds siltstone, and scattered brown weth. argill, silty, fine gr ss + sndy siltstn (x-12cm) O. 4.4 Shale, dk gray to black, silty with arg interbeds, thin siltstone. P 0.9 Sandsta ledge, fine gr-silty argillaceous