Published online by Cambridge University Press: 27 May 2014
Unavoidable delay in preparing a comprehensive report on the nature and distribution of stone implements in the West Midlands has coincided with rapid progress in the examination of axes in some of the more northern counties. As a result, certain new petrological groups which it has been convenient to establish in the West Midland survey, are becoming increasingly relevant to the other areas under investigation, though no published definition of these groups is available. This paper is intended simply to remedy this omission without attempting to discuss questions of typology and distribution. The numbers assigned to the groups is by arrangement with Dr F. S. Wallis and Professor Grimes so as to prevent duplication with work in other areas.