"and saw the Rochester shale and tried to see contact between the Clinton and Medina but failed. "Lockport not a good place to study the Siluric section" Hall 1843 says that Whirlpool sandstone is quarried one mile north of Lockport. These are probably the Whitenaes quarries. If so make out clear if this is not an error. These should be in upper Medina. Is this the same as "Delta Lockport m. only Band at Lockport only 2 feet thick. Kindle says that the Medina "fauna occurs in the southern part of the old quarry north of Lockport and also in the outskirts of the M. along the lower part of the Gulf."