For help in checking references and in proof-reading, the author is indebted to Mr James Gale, Mr John Gale, Mr John Plowright and Mr John Parry. He is indebted to Mrs E. D. Beebe and Mrs J. G. W. Davies for typing, to the Cambridge History Faculty for a grant from its Political Science Fund, to Dr P. Hunter Blair, Mr W. A. Camps, Mr D. J. V. Fisher, Professor Michael Oakeshott, Mr Graeme Rennie, Mr E. Ray and Mr Hywel Williams for items of information, and to librarians in the Peterhouse and Cambridge University libraries (especially Mr G. W. Stannard) for help in tracing articles and books. He is indebted to Mrs A. J. Toynbee for permission to examine some of the Toynbee papers in the Bodleian Library and to Mrs R. G. Collingwood for permission to use, and to quote from, the papers of her late husband, also in the Bodleian. He is indebted to Mrs H. M. Dunn, the Fellows' Secretary at Peterhouse, and to Mrs Elizabeth Wetton and Mr Francis Brooke of the Cambridge University Press for their assistance in preparing the book for publication. For the index he is indebted to Mrs Ann Hall. Above all, he is indebted to the Master and Fellows of Peterhouse for continuing to provide conditions in which work can be done.

For reading and commenting on parts of the book during the process of composition between 1976 and 1979, the author is grateful to Dr David Cannadine, Mr J. C. D. Clark, Professor Timothy Fuller, Mr Martin Golding, Dr Peter Linehan, Dr Roger Lovatt, Dr David Newsome, Sir Charles Pickthorn, the Rt Hon. J. Enoch Powell MP, Mr Geoffrey Scammell, Dr Roger Scruton, the Reverend Canon Charles Smyth, the Reverend John Sweet, Professor Walter Ullmann, Professor John Vincent and Mr Ian Willison.