That I should have to acknowledge a fairly heavy debt to Forster's "Life of Charles Dickens," and "The Letters of Charles Dickens," edited by his sister-in-law and his eldest daughter, is almost a matter of course; for these are books from which every present and future biographer of Dickens must perforce borrow in a more or less degree. My work, too, has been much lightened by Mr. Kitton's excellent "Dickensiana."