It is difficult to express one's gratitude. Mine I owe to my brother, R. E. Dickinson, to Mrs. Ernest Farquhar (granddaughter of Lady Theresa Lewis), to Sir Guy Campbell, Mrs. W. Rendel, and Sir Arthur Stanley, for the loan of letters in this book. I also thank Mr. Claud Paget and Mr. W. Barclay Squire for the help they have given me.