HAVE to thank Mr. Temperley for his help and
advice, for permitting me constantly to avail
myself of his immense store of historical research,
and for what is, if possible, the even more valuable assistance I have gained in the course of our many walks and conversations.
Miss Winifred Pierpoint Mitchell for her patience in hearing and criticizing practically everything I have written, and for help with the proofs.
Mr. Roy Truscott for the index.
Mr. John Lane for placing at my disposal his unique knowledge of early English art.
Mr. G. Lowes Dickinson, Mr. C. R. L. Fletcher, and Mr. G. M. Trevelyan for reading and criticizing my manuscript.
The Countess of Darnley for her criticism and for permission to quote from a letter of the late Mr. G. F. Watts.
Mr. C. K. Webster for lending me unpublished matter about Castlereagh.