The broadly generalized descriptions of southern Appalachian Cambrian stratigraphy thus far published present an imperfect picture. Details are available only for a few restricted areas or for individual sections. Division into the formations has been almost entirely on a lithologic basis, which on the whole is quite satisfactory, though this method of stratigraphic work has not permitted correlation with any high degree of exactness. Previously no complete study has been made of a fauna or of a collection from a specific locality. Most of the older fossil collections unfortunately are neither adequate nor accurately placed as to locality and horizon....