ABSTRACT
In the space available these notes cannot be exhaustive. T h e y aim only at giving a selection o f (normally) the most recent literature suitable for further reading. T h e citation o f any work does not im ply that its author’s views are those adopted in the t e x t : though this may often be the case, the selection has been made rather on the strength o f material evidence presented than o f interpretation offered. Works useful for their own bibliographies or citations o f earlier literature are marked with an asterisk.*
