`The battle for health': a political history of the Socialist Medical Association, 1930–51

classification. But her excellent use of aggregate data effectively sets the agenda for future research in this field. There was clearly a link between the epidemiological history of pre-industrial England and the topography of individual localities. Significantly, a number of vicars in the eighteenth century refused to reside in their marshland parishes because of "unhealthy air": given the predicted dangers of globalwarming and the possible return of the malaria mosquito vector to the south coast of England, Dobson's emphasis on the direct association between the environment and the epidemiology of a single disease will deservedly attract a great deal of attention.