<P>Sociologists and historians are not always the best of neighbours, each group tending to perceive the other in terms of the crudest of stereotypes. However, the two approaches are obviously complementary - change is structured, and structures change. Each discipline can free the other from its own kind of parochialism and the aim of this book is to bridge the gap between these tow subcultures, to give historians a more acute sense of structure and sociologists a more acute sense of change.</P>