"part is higher than the Tentaclite Gry at Regan. In the yellow, flint shale the regular Heldbergian forms seem to spite of the fact that Cleghorn said he found no fossils. I saw Orthomella punctulifera, Lys., chondroidea, Meirice glandulosa, D. cyclopterus and towards the top D. macropleura. The Diluvio-Deronic line is here therefore to be drawn at the top of the Clark's Mills formation. There in therefore here a faunal hiatus since no Creymans path its bybichela selecta gene occurs here. The Heldbergian-Oriskanian times appears in Pa. to have been one of very irregular oscillation. The deposits of the former towards the top of the derivation often time inconsistent in that one locality has a series of deposits not present a few miles away. The eutire matter needs looking into. (Later much of this is in error due to a wrong interpretation of the Lewiston line above).