farther east is mac fossiliferous, Stylisina is abundant. Other forms are Ostrocodes and some Brachidiurids (see the lith). The Oriskany sandstone beneath the Marcellus was measured and gave a thickness of 64 feet in this cut but many fossils are seen but in the quarry they are very common. Among these Specifics are- Pera, Rensselaeria ovodes and Platyceras are most in evidence. How one can make this thickness 20 or in clints. The silicious shale (with chert) beneath the Oriskany was measured and gave a thickness of 67 feet. From the great abundance of large fossils in the white sandstone I should think this shale did not to hold the same position as the black Lower Oriskany about Cumberland. The only fossil seen was Specifics litotaphis. There is then here as elsewhere the absence of the Onondaga beneath the Marcellus. Beneath the Oriskany there is in this region a decided difference in that the Oriskany shale reposes not on the Heldeburyian but lies not higher than the middle Creymana. Therefore there was here a land interval eroding away the Heldebur- yian but I think this erosion was slight but that here, the Heldeburyian was eroded out by the action of the invading sea.