and saw nothing to support anything. In some of the time culverts show on the white limestone two Lepidodipter and a small ostracod and bygma. These certainly are of the Upper Devon Rima. The limestone is said to be from Hayestown Md. This then is about the same position in the valley as Martinsburg, Latm. These limestones look ble- cidely like those of the quarries at Martinsburg. With the Rhemandral limestone thousands of feet thick ending abruptly at the fault line beside the Antietam sandstone the question is at once asked how far seaward did this limestone extend? Certainly across the South Mt. Blue Ridges on the Castoctin for limestone is known to run beneath the Jura Trias of Maryland. Has the shore to this area as far east as half way on the Piedmont Platform, the area of the surface uplands arcs nor seen in the metarphyllite. Suggestive of all this is the fact that the US Survey maps Rhemandal limestone to the East of the Catoctin Mt. and over which lies the Triassic. Furthermore farther east is seen the phyllites and crystalline limestone