The document or paper used for this talk is missing. (In the case of presentations, or talks, sometimes no formal manuscript was ever done, but Rose Warfield tried to keep a record of each of the talks with a date and place it was given, just in case some papers on this event might turn up later then we would know where to file them. ) I don't know what transparencies or notes he used for this talk, however, there might be something on his computer that I haven't found yet.