"Above this the [?]am is covered with pierce a gelicious shale in which I found Leptrocoelia Satellite, Amphibia nucleata, Crystina petralia etc. These forms since their origin here were Giollamy. There are Ashburne's Levostatum lime shale as Orphanian. Since I have studied the Cumber land section I have surmised that, in the region of Pa. and Ind., either the top of the Hildubryan was not deposited or it was eroded away, in Perry Co Claypole notes little Helthous shale, and here there appears to be none. In Perry Co. the entire Orphanian seems to be reduced to 25 feet. Under these circumstances there seems to be a land interval between the Hildubryan and Orphanian always cutting out a small portion of the former and probably also much of the lower parts of the latter. The results hereabouts give the following strata table: After Orphanian 160'