*I would like to thank several people for their help in the completion of this project. Thelma McCormack, Linda Christiansen-Ruffman and David Flynn made suggestions on earlier drafts of this paper. John Fox performed the logistic regression analysis reported in notes 4 and 5. Paul Barrett and Julie Lee collected much of the data. Finally, 1 would like to thank all the politicians who co-operated in the study and King's College for funding it. This article was received in January, 1984 and accepted in August, 1984.