This which side often looked much like Dayton stone when fractured, at times more crinoidal but white. The weathered sur- face generally showed plenty of crinoidal material. A large joggidinium of Illaenus cylindrus type was found in it but this don't mean much. The greenish magnesian Niagara in those layers was found immediately above. The lower position of this Chintim is seen merely from the fact that it was exposed further down the creek. It is a matter of debate with me whether this whiteish crinoidal Chintim often to be the homogeneous Dayton limestone or fracture is to be placed in the Chin- tim, or is to be referred the base of the Dayton beds. In the good bed Illaenus ambiguus large form.