The technique of Greek black and terra sigillata red

Classical pottery such as terra sigillata has no parallel in the post-classical world, and was studied by scholars for many years before the methods of its manufacture were known. It is remarkable that practically none of the research on the technical aspect was carried out in England, and, in spite of their great interest, the processes involved still seem to be little understood here. It is the purpose of this paper to review these processes, to show how various misconceptions have arisen in regard to them, and also to suggest some more probable explanations in the light of work done recently at the British Museum laboratory.