The main purpose of this article is to put on record material from two collections of photographs, made by Mr O.G.S. Crawford and by the writer. As the ‘ exhibits ’ were varied and numerous, it seemed desirable to make a selection that would link up with what has already been published on the subject in ANTIQUITYpr, oducing in the process some shadow of an evolution. For any opinions that are advanced, however, the writer, and not Mr Crawford, must be held entirely responsible.