nucleus continues down to Mt. further, At [altitude] 1950 feet, I picked up heads of Toxithurus brevi. [altitude] At 950 feet Reeds and I picked up several specimens of Diplocidatus and one Leptobolus having her four radiations. Ten specimens. This locality is just up the mountain from the turn in the road at which one has a fine view of the river bridge over the Sheanum- drah. There is more Haell shale at the bridge, (Later, The same formation found at Martin's Ferry at the base of the Martinsburg shales) There is no finer nor more continuous section of the Martinsburg shale than this one in the road from Dorodstock of Massanutten Mt. thin (one foot) one exposure beside the road from the bridge up to the Massanutten sandstone. As far as I can see the Martinsbury trying to the Utica and help in the Lorraine with Orthorychule being as the highest design member. Throughout it is a black sandy shale that weathers into yellowish, red, white or mottled white and black shale. There is much fine sand and evidence of minute cross bedding. More sandy at top [illegible] from Massanutten. Crossing the bridge and walling to Dorodstock one passes down more Martinsburg, all black, to the finer size of the sand about 1/8 mile from the bridge, here the limestone comes in. In