It seems from Reeds' work that the Tuff Oriskany is developed in Coral Creek (Reeds mr 14). Here it is said to be 27 feet thick, the basal 2 feet being a arguina. It may be that it was this 2 feet that are collected from yesterday, the remaining 25 feet or being typical Oriskanian. Look into this and tell Morgan about it. Later he said he would look into the matter. It therefore appear that Oriskany comes in at Bois d'Arc (3 feet thick) and seemingly thickens to the south east.